Geophysical survey - Revision history

Editor at 17:44, 14 June 2021

2021-06-14T17:44:02Z

← Older revision		Revision as of 17:44, 14 June 2021
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	* In situ testing of soils.		* In situ testing of soils.
	* Interferometric synthetic aperture radar InSAR.		* Interferometric synthetic aperture radar InSAR.
		+	* Interview with Elly Ball, co-founder Get Kids into Survey.
	* Land surveying.		* Land surveying.
	* Minerals surveyor.		* Minerals surveyor.

Designing Buildings at 08:43, 29 March 2021

2021-03-29T08:43:49Z

← Older revision		Revision as of 08:43, 29 March 2021
Line 49:		Line 49:
	* Minerals surveyor.		* Minerals surveyor.
	* Preliminary ecological appraisal.		* Preliminary ecological appraisal.
−	* ~~Slaking~~.	+	* Radar.
	* Soil report.		* Soil report.
	* Soil survey.		* Soil survey.

Editor at 17:05, 19 March 2021

2021-03-19T17:05:44Z

← Older revision		Revision as of 17:05, 19 March 2021
Line 45:		Line 45:
	* Ground investigation.		* Ground investigation.
	* In situ testing of soils.		* In situ testing of soils.
		+	* Interferometric synthetic aperture radar InSAR.
	* Land surveying.		* Land surveying.
	* Minerals surveyor.		* Minerals surveyor.

Editor at 12:34, 15 December 2020

2020-12-15T12:34:29Z

← Older revision		Revision as of 12:34, 15 December 2020
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	* Trial pit.		* Trial pit.
	* Types of soil.		* Types of soil.
		+	* Using satellite imagery to monitor movements in megaprojects.
	* Walkover survey.		* Walkover survey.

Designing Buildings at 08:02, 23 October 2020

2020-10-23T08:02:07Z

← Older revision		Revision as of 08:02, 23 October 2020
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	* Walkover survey.		* Walkover survey.

−	=== External references ===	+	= External references =

	* ‘Introduction to Civil Engineering Construction’ (3rd ed.), HOLMES, R., The College of Estate Management (1995)		* ‘Introduction to Civil Engineering Construction’ (3rd ed.), HOLMES, R., The College of Estate Management (1995)

−	[[Category:Construction_techniques]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Construction_techniques]]

Editor at 12:25, 29 November 2018

2018-11-29T12:25:38Z

← Older revision		Revision as of 12:25, 29 November 2018
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	* Thermographic survey of buildings.		* Thermographic survey of buildings.
	* Topsoil.		* Topsoil.
		+	* Trial pit.
	* Types of soil.		* Types of soil.
	* Walkover survey.		* Walkover survey.

Editor at 17:13, 23 November 2018

2018-11-23T17:13:17Z

← Older revision		Revision as of 17:13, 23 November 2018
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	= Seismic refraction and reflection =		= Seismic refraction and reflection =

−	Seismic refraction and reflection involves propagating vibrations with a ‘sledgehammer’ and measuring the time taken and the distance covered by the shock waves. Shallow exploration tends to favour the refraction method, whereby seismometers are spaced at increasing distances from the vibration source with the shock waves plotted against a time scale. The reflection method is suited to exploration depths of greater than 150 m. Both methods are useful for determining the change in soil type and for surveying sites for tunnels, dams and harbour works.	+	Seismic refraction and reflection involves propagating vibrations with a ‘sledgehammer’ and measuring the time taken and the distance covered by the shock waves. Shallow exploration tends to favour the refraction method, whereby seismometers are spaced at increasing distances from the vibration source with the shock waves plotted against a time scale.
		+
		+	The reflection method is suited to exploration depths of greater than 150 m. Both methods are useful for determining the change in soil type and for surveying sites for tunnels, dams and harbour works.

	= Magnetometry =		= Magnetometry =
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	A radar signal is directed at the ground, and the time take for reflection to reach the detector can be used to map the depth of sub-surface features. It can be used for deep objects and can identify small features, but is generally best suited to good ground conditions.		A radar signal is directed at the ground, and the time take for reflection to reach the detector can be used to map the depth of sub-surface features. It can be used for deep objects and can identify small features, but is generally best suited to good ground conditions.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* 3D laser survey.		* 3D laser survey.
Line 48:		Line 48:
	* Minerals surveyor.		* Minerals surveyor.
	* Preliminary ecological appraisal.		* Preliminary ecological appraisal.
		+	* Slaking.
	* Soil report.		* Soil report.
	* Soil survey.		* Soil survey.

Editor at 15:05, 3 May 2018

2018-05-03T15:05:40Z

← Older revision		Revision as of 15:05, 3 May 2018
Line 42:		Line 42:
	* Geotechnical engineering.		* Geotechnical engineering.
	* Ground conditions.		* Ground conditions.
		+	* Ground improvement techniques.
	* Ground investigation.		* Ground investigation.
	* In situ testing of soils.		* In situ testing of soils.

Editor at 16:18, 30 April 2018

2018-04-30T16:18:36Z

← Older revision		Revision as of 16:18, 30 April 2018
Line 52:		Line 52:
	* Surveying instruments.		* Surveying instruments.
	* Testing construction materials.		* Testing construction materials.
		+	* Testing pile foundations.
	* Thermographic survey of buildings.		* Thermographic survey of buildings.
	* Topsoil.		* Topsoil.

Editor at 15:23, 23 April 2018

2018-04-23T15:23:50Z

← Older revision		Revision as of 15:23, 23 April 2018
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	* 3D laser survey.		* 3D laser survey.
		+	* Alluvium.
	* Condition survey.		* Condition survey.
	* Desk study.		* Desk study.