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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Trenching_equipment</id>
		<title>Trenching equipment - Revision history</title>
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		<updated>2026-04-30T17:50:44Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=177030&amp;oldid=prev</id>
		<title>Designing Buildings at 06:14, 7 October 2020</title>
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				<updated>2020-10-07T06:14:11Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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			&lt;col class='diff-content' /&gt;
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			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 06:14, 7 October 2020&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 71:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 71:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Types of roller.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Types of roller.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Construction_techniques&lt;/del&gt;]] [[Category:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Products_/_components&lt;/del&gt;]] [[Category:DCN_Product_Knowledge]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;DCN_Definition&lt;/ins&gt;]] [[Category:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;DCN_Guidance&lt;/ins&gt;]] [[Category:DCN_Product_Knowledge&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] [[Category:Construction_techniques]] [[Category:Products_/_components&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=103846&amp;oldid=prev</id>
		<title>Editor at 16:04, 13 April 2018</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=103846&amp;oldid=prev"/>
				<updated>2018-04-13T16:04:10Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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			&lt;col class='diff-content' /&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 16:04, 13 April 2018&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 65:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 65:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Groundworks.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Groundworks.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Pipelines.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Pipelines.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* Trench box.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Trench support.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Trench support.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Tunnelling.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Tunnelling.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 70:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 71:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Types of roller.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Types of roller.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:Construction_techniques]] [[Category:Products_/_components]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:Construction_techniques]] [[Category:Products_/_components&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] [[Category:DCN_Product_Knowledge&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=83862&amp;oldid=prev</id>
		<title>Editor at 14:24, 31 July 2017</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=83862&amp;oldid=prev"/>
				<updated>2017-07-31T14:24:30Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 14:24, 31 July 2017&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 64:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 64:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Excavating plant.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Excavating plant.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Groundworks.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Groundworks.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* Pipelines.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Trench support.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Trench support.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Tunnelling.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Tunnelling.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72086&amp;oldid=prev</id>
		<title>Designing Buildings at 14:40, 9 March 2017</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72086&amp;oldid=prev"/>
				<updated>2017-03-09T14:40:21Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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			&lt;col class='diff-content' /&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 14:40, 9 March 2017&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 37:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 37:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Skimmer ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Skimmer ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;as a &lt;/del&gt;trenching &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;machine&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a skimmer is &lt;/del&gt;used for excavating long trenches, such as those necessary for pipelines. They will normally dig trenches 0.25-1.5 m wide and up to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;depths of &lt;/del&gt;3 m, where a high degree of accuracy is required. The machine moves forwards &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;when &lt;/del&gt;excavating with buckets either mounted on a wheel at the front, or on a chain which is carried by a jib.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known trenching &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;machines&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;skimmers are &lt;/ins&gt;used for excavating long trenches, such as those necessary for pipelines. They will normally dig trenches 0.25-1.5 m wide and up to 3 m &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;deep&lt;/ins&gt;, where a high degree of accuracy is required. The machine moves forwards&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;excavating with buckets either mounted on a wheel at the front, or on a chain which is carried by a jib.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Micro trencher ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Micro trencher ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;A micro trencher is &lt;/del&gt;used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;specifically &lt;/del&gt;for excavating &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;small width &lt;/del&gt;trenches, usually in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;an &lt;/del&gt;urban &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;area&lt;/del&gt;. Widths &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;that can be achieved &lt;/del&gt;range from 30-130 mm (1.2-5.1 in), with depths of 500 mm (20 in) or less.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Micro trenchers are &lt;/ins&gt;used for excavating &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;narrow &lt;/ins&gt;trenches, usually in urban &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;areas&lt;/ins&gt;. Widths range from 30-130 mm (1.2-5.1 in), with depths of 500 mm (20 in) or less.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The reduced trench size means that there is a reduction in the volume of excavated waste material, and disturbance &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to vehicle and/or pedestrian traffic &lt;/del&gt;can be minimised. They are sometimes radio-controlled and are used for road maintenance and to gain access to utilities under the road surface.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The reduced trench size means that there is a reduction in the volume of excavated waste material, and disturbance can be minimised. They are sometimes radio-controlled and are used for road maintenance and to gain access to utilities under the road surface.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Portable trencher ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Portable trencher ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Portable trenchers are lightweight and easy to handle, and can used to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;install &lt;/del&gt;landscape edging and irrigation lines. They use a chain or a blade, similar to a rotary lawnmower, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to rotate &lt;/del&gt;in a vertical plane.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Portable trenchers are lightweight and easy to handle, and can used to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;instal &lt;/ins&gt;landscape edging and irrigation lines. They use a chain or a blade, similar to a rotary lawnmower, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rotating &lt;/ins&gt;in a vertical plane.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Tractor mount trencher ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Tractor mount trencher ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;This is &lt;/del&gt;a type of chain trencher, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;and is &lt;/del&gt;pulled by a creeping gear tractor which must be able to go as slowly as the trencher’s trenching speed.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Tractor mount trenchers are &lt;/ins&gt;a type of chain trencher, pulled by a creeping gear tractor which must be able to go as slowly as the trencher’s trenching speed.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Find out more =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Find out more =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72085&amp;oldid=prev</id>
		<title>Designing Buildings at 14:36, 9 March 2017</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72085&amp;oldid=prev"/>
				<updated>2017-03-09T14:36:55Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 14:36, 9 March 2017&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Introduction =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Introduction =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;A trench is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;defined as &lt;/del&gt;an excavation &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;when its &lt;/del&gt;length greatly exceeds &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;its &lt;/del&gt;depth. Shallow trenches are usually considered to be less than 6m deep and deep trenches greater than 6 m. Depending on the dimensions of a trench, excavation can &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;either &lt;/del&gt;be carried out by hand or &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;using &lt;/del&gt;a mechanical digger.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;A trench is an excavation &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/ins&gt;length &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of which &lt;/ins&gt;greatly exceeds &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/ins&gt;depth. Shallow trenches are usually considered to be less than 6m deep and deep trenches greater than 6 m. Depending on the dimensions of a trench, excavation can be carried out by hand or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;by &lt;/ins&gt;a mechanical digger.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;There &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;are various different kinds &lt;/del&gt;of equipment that can be used for excavating trenches.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;There &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is a wide range &lt;/ins&gt;of equipment that can be used for excavating trenches.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Hand trenching tools =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Hand trenching tools =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Trenching shovel ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Trenching shovel ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;This type of shovel is usually employed after a powered trencher and is designed to clear loose material from the bottom of a narrow trench. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Their &lt;/del&gt;narrow width means &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;that &lt;/del&gt;they are not suitable for digging &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;with&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;This type of shovel is usually employed after a powered trencher and is designed to clear loose material from the bottom of a narrow trench. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The &lt;/ins&gt;narrow width &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of trenching shovels &lt;/ins&gt;means they are not suitable for digging.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Trenching hoe ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Trenching hoe ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known as a grub hoe, this is used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;from &lt;/del&gt;standing at ground level, chopping soil loose and dragging it up the ramped end of a trench.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known as a grub hoe, this is used standing at ground level, chopping soil loose and dragging it up the ramped end of a trench.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Trencher &lt;/del&gt;=&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Trenchers &lt;/ins&gt;=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;A trencher is a piece &lt;/del&gt;of mechanical equipment &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;that is &lt;/del&gt;used to excavate and prepare trenches. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;There are many different &lt;/del&gt;kinds of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;trenchers that &lt;/del&gt;can be used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;according to &lt;/del&gt;the width and depth required and the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;hardness &lt;/del&gt;of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;surface &lt;/del&gt;to be cut.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Trenchers are pieces &lt;/ins&gt;of mechanical equipment used to excavate and prepare trenches. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Different &lt;/ins&gt;kinds of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;trencher &lt;/ins&gt;can be used &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;depending on &lt;/ins&gt;the width and depth required and the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;nature &lt;/ins&gt;of the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;material &lt;/ins&gt;to be cut.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Wheel trencher ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Wheel trencher ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known as &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a rockwheel&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;this type of trencher is &lt;/del&gt;fitted with a toothed metal wheel and can be used in hard or soft soils. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;It &lt;/del&gt;can also be used for cutting pavements and for &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;gaining &lt;/del&gt;access to utilities under roads. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;It &lt;/del&gt;can be mounted on tracks or rubber &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tires&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also known as &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rockwheels&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;wheel trenchers are &lt;/ins&gt;fitted with a toothed metal wheel and can be used in hard or soft soils. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;They &lt;/ins&gt;can also be used for cutting pavements and for &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;creating &lt;/ins&gt;access to utilities under roads. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;They &lt;/ins&gt;can be mounted on tracks or rubber &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;tyres&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Depending on &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/del&gt;diameter, there are 6-8 cutting elements placed around the wheel which bear &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/del&gt;high-strength steel teeth, arranged in a semi-spherical configuration to increase material removal &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;from the trench&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Depending on diameter, there are 6-8 cutting elements placed around the wheel which bear high-strength steel teeth, arranged in a semi-spherical configuration to increase material removal. The design of the wheel enables cutting of varying depths, and a constant soil working angle with a relatively small wheel diameter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The design of the wheel enables cutting of varying depths, and a constant soil working angle with a relatively small wheel diameter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Chain trencher ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Chain trencher ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;This &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;type of &lt;/del&gt;chainsaw-like trencher uses a digging chain or belt to cut ground. The belt is driven around a rounded metal frame or boom, the angle of which can be adjusted to control the cut depth. The boom &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;should be &lt;/del&gt;held at a fixed angle while the machine slowly &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;creeps to cut a trench effectively&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;This &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is a &lt;/ins&gt;chainsaw-like trencher &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;which &lt;/ins&gt;uses a digging chain or belt to cut &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/ins&gt;ground. The belt is driven around a rounded metal frame or boom, the angle of which can be adjusted to control the cut depth. The boom &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is &lt;/ins&gt;held at a fixed angle while the machine slowly &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;moves&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Chain trenchers are used to cut hard ground, and are flexible enough to be able to cut narrow, deep and wider trenches for utilities. A conveyor belt on either side of the trencher removes the excavated materials.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Chain trenchers are used to cut hard ground, and are flexible enough to be able to cut narrow, deep and wider trenches for utilities. A conveyor belt on either side of the trencher removes the excavated materials.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72065&amp;oldid=prev</id>
		<title>Editor at 13:19, 9 March 2017</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72065&amp;oldid=prev"/>
				<updated>2017-03-09T13:19:36Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 13:19, 9 March 2017&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[File:Trencher.jpg]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;File:Trencher.jpg|link=&lt;/ins&gt;File:Trencher.jpg]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Introduction =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Introduction =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 59:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Related articles on Designing Buildings Wiki ===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;=== Related articles on Designing Buildings Wiki ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* Breaker.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Construction plant.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Construction plant.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Construction tools.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Construction tools.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72062&amp;oldid=prev</id>
		<title>Editor: Created page with &quot;File:Trencher.jpg  = Introduction =  A trench is defined as an excavation when its length greatly exceeds its depth. Shallow trenches are usually considered to be less than 6...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Trenching_equipment&amp;diff=72062&amp;oldid=prev"/>
				<updated>2017-03-09T13:18:25Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;&lt;a href=&quot;/wiki/File:Trencher.jpg&quot; title=&quot;File:Trencher.jpg&quot;&gt;File:Trencher.jpg&lt;/a&gt;  = Introduction =  A trench is defined as an excavation when its length greatly exceeds its depth. Shallow trenches are usually considered to be less than 6...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[File:Trencher.jpg]]&lt;br /&gt;
&lt;br /&gt;
= Introduction =&lt;br /&gt;
&lt;br /&gt;
A trench is defined as an excavation when its length greatly exceeds its depth. Shallow trenches are usually considered to be less than 6m deep and deep trenches greater than 6 m. Depending on the dimensions of a trench, excavation can either be carried out by hand or using a mechanical digger.&lt;br /&gt;
&lt;br /&gt;
There are various different kinds of equipment that can be used for excavating trenches.&lt;br /&gt;
&lt;br /&gt;
= Hand trenching tools =&lt;br /&gt;
&lt;br /&gt;
Spades or digging shovels can be used for the first foot of trench depth, but for deeper trenches, special hand trenching tools and shovels are more appropriate. These allow the user to stand straighter and remain at ground level.&lt;br /&gt;
&lt;br /&gt;
=== Trenching shovel ===&lt;br /&gt;
&lt;br /&gt;
This type of shovel is usually employed after a powered trencher and is designed to clear loose material from the bottom of a narrow trench. Their narrow width means that they are not suitable for digging with.&lt;br /&gt;
&lt;br /&gt;
=== Trenching hoe ===&lt;br /&gt;
&lt;br /&gt;
Also known as a grub hoe, this is used from standing at ground level, chopping soil loose and dragging it up the ramped end of a trench.&lt;br /&gt;
&lt;br /&gt;
= Trencher =&lt;br /&gt;
&lt;br /&gt;
A trencher is a piece of mechanical equipment that is used to excavate and prepare trenches. There are many different kinds of trenchers that can be used according to the width and depth required and the hardness of the surface to be cut.&lt;br /&gt;
&lt;br /&gt;
=== Wheel trencher ===&lt;br /&gt;
&lt;br /&gt;
Also known as a rockwheel, this type of trencher is fitted with a toothed metal wheel and can be used in hard or soft soils. It can also be used for cutting pavements and for gaining access to utilities under roads. It can be mounted on tracks or rubber tires.&lt;br /&gt;
&lt;br /&gt;
Depending on the diameter, there are 6-8 cutting elements placed around the wheel which bear the high-strength steel teeth, arranged in a semi-spherical configuration to increase material removal from the trench.&lt;br /&gt;
&lt;br /&gt;
The design of the wheel enables cutting of varying depths, and a constant soil working angle with a relatively small wheel diameter.&lt;br /&gt;
&lt;br /&gt;
=== Chain trencher ===&lt;br /&gt;
&lt;br /&gt;
This type of chainsaw-like trencher uses a digging chain or belt to cut ground. The belt is driven around a rounded metal frame or boom, the angle of which can be adjusted to control the cut depth. The boom should be held at a fixed angle while the machine slowly creeps to cut a trench effectively.&lt;br /&gt;
&lt;br /&gt;
Chain trenchers are used to cut hard ground, and are flexible enough to be able to cut narrow, deep and wider trenches for utilities. A conveyor belt on either side of the trencher removes the excavated materials.&lt;br /&gt;
&lt;br /&gt;
=== Skimmer ===&lt;br /&gt;
&lt;br /&gt;
Also known as a trenching machine, a skimmer is used for excavating long trenches, such as those necessary for pipelines. They will normally dig trenches 0.25-1.5 m wide and up to depths of 3 m, where a high degree of accuracy is required. The machine moves forwards when excavating with buckets either mounted on a wheel at the front, or on a chain which is carried by a jib.&lt;br /&gt;
&lt;br /&gt;
=== Micro trencher ===&lt;br /&gt;
&lt;br /&gt;
A micro trencher is used specifically for excavating small width trenches, usually in an urban area. Widths that can be achieved range from 30-130 mm (1.2-5.1 in), with depths of 500 mm (20 in) or less.&lt;br /&gt;
&lt;br /&gt;
The reduced trench size means that there is a reduction in the volume of excavated waste material, and disturbance to vehicle and/or pedestrian traffic can be minimised. They are sometimes radio-controlled and are used for road maintenance and to gain access to utilities under the road surface.&lt;br /&gt;
&lt;br /&gt;
=== Portable trencher ===&lt;br /&gt;
&lt;br /&gt;
Portable trenchers are lightweight and easy to handle, and can used to install landscape edging and irrigation lines. They use a chain or a blade, similar to a rotary lawnmower, to rotate in a vertical plane.&lt;br /&gt;
&lt;br /&gt;
=== Tractor mount trencher ===&lt;br /&gt;
&lt;br /&gt;
This is a type of chain trencher, and is pulled by a creeping gear tractor which must be able to go as slowly as the trencher’s trenching speed.&lt;br /&gt;
&lt;br /&gt;
= Find out more =&lt;br /&gt;
&lt;br /&gt;
=== Related articles on Designing Buildings Wiki ===&lt;br /&gt;
&lt;br /&gt;
* Construction plant.&lt;br /&gt;
* Construction tools.&lt;br /&gt;
* Dredging.&lt;br /&gt;
* Earth-moving plant.&lt;br /&gt;
* Excavating plant.&lt;br /&gt;
* Groundworks.&lt;br /&gt;
* Trench support.&lt;br /&gt;
* Tunnelling.&lt;br /&gt;
* Types of crane.&lt;br /&gt;
* Types of roller.&lt;br /&gt;
&lt;br /&gt;
[[Category:Construction_techniques]] [[Category:Products_/_components]]&lt;/div&gt;</summary>
		<author><name>Editor</name></author>	</entry>

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