Bored piles - Revision history

Designing Buildings at 09:09, 23 November 2022

2022-11-23T09:09:02Z

← Older revision		Revision as of 09:09, 23 November 2022
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	At the required depth, reinforcement is lowered through the bentonite and concrete poured. The bentonite is displaced by the concrete and pumped back up out of the hole. As the concrete reaches the hole’s upper level, the temporary casing is withdrawn.		At the required depth, reinforcement is lowered through the bentonite and concrete poured. The bentonite is displaced by the concrete and pumped back up out of the hole. As the concrete reaches the hole’s upper level, the temporary casing is withdrawn.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Continuous flight auger piles.		* Continuous flight auger piles.
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	* Tension piles.		* Tension piles.
	* Testing pile foundations.		* Testing pile foundations.
		+	* Types of pile foundation.
	* Underpinning.		* Underpinning.

Designing Buildings at 12:50, 1 September 2020

2020-09-01T12:50:22Z

← Older revision		Revision as of 12:50, 1 September 2020
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	* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., .GREENO, R., Butterworth-Heinemann (2006)		* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., .GREENO, R., Butterworth-Heinemann (2006)

−	[[Category:~~Construction_techniques~~]] [[Category:~~Products_/_components~~]] [[Category:DCN_Product_Knowledge]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Editor at 11:36, 15 May 2019

2019-05-15T11:36:03Z

← Older revision		Revision as of 11:36, 15 May 2019
Line 43:		Line 43:
	At the required depth, reinforcement is lowered through the bentonite and concrete poured. The bentonite is displaced by the concrete and pumped back up out of the hole. As the concrete reaches the hole’s upper level, the temporary casing is withdrawn.		At the required depth, reinforcement is lowered through the bentonite and concrete poured. The bentonite is displaced by the concrete and pumped back up out of the hole. As the concrete reaches the hole’s upper level, the temporary casing is withdrawn.

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

	* Continuous flight auger piles.		* Continuous flight auger piles.
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	* Ground anchor.		* Ground anchor.
	* Micropiles.		* Micropiles.
		+	* Moorfields building sets UK pile-loading record.
	* Pad foundation.		* Pad foundation.
	* Pile cap.		* Pile cap.
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	* Underpinning.		* Underpinning.

−	=== External resources ===	+	= External resources =

	* ‘Introduction to Civil Engineering Construction’ (3rd ed.), HOLMES, R., College of Estate Management (1994)		* ‘Introduction to Civil Engineering Construction’ (3rd ed.), HOLMES, R., College of Estate Management (1994)
	* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., .GREENO, R., Butterworth-Heinemann (2006)		* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., .GREENO, R., Butterworth-Heinemann (2006)

−	[[Category:Construction_techniques]] [[Category:Products_/_components]]	+	[[Category:Construction_techniques]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Editor at 12:19, 3 May 2018

2018-05-03T12:19:24Z

← Older revision		Revision as of 12:19, 3 May 2018
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	* Pile cap.		* Pile cap.
	* Pile foundations.		* Pile foundations.
		+	* Pile integrity test.
	* Piling equipment.		* Piling equipment.
	* Screw piles.		* Screw piles.

Editor at 13:35, 1 May 2018

2018-05-01T13:35:28Z

← Older revision		Revision as of 13:35, 1 May 2018
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	Bored piles are piles where the removal of spoil forms a hole for a reinforced concrete pile which is poured in situ. The spoil is replaced by the pile, hence 'replacement' piles as opposed to displacement piles where soil is forced away by driving or screwing the pile.		Bored piles are piles where the removal of spoil forms a hole for a reinforced concrete pile which is poured in situ. The spoil is replaced by the pile, hence 'replacement' piles as opposed to displacement piles where soil is forced away by driving or screwing the pile.

−	Bored piles are used primarily in cohesive subsoils for the formation of friction piles and when forming pile foundations close to existing buildings. They are popular in urban areas as there is minimal vibration, where headroom is limited, where there is no risk of heave and if there is a need to vary the length of the piles.	+	Bored piles are used primarily in cohesive subsoils for the formation of friction piles and when forming pile foundations close to existing buildings. They are popular in urban areas as there is minimal vibration, where headroom is limited, where there is no risk of heave, and if there is a need to vary the length of the piles.

	=== Installation ===		=== Installation ===

−	Bored piles are drilled using buckets and/or augers driven by percussion boring (vibratory hammers) or through rotary boring (twisting in place).	+	Bored piles are drilled using buckets and/or augers driven by [[Piling_equipment#Percussion_drivers\|percussion boring]] (vibratory hammers) or through rotary boring (twisting in place).

	In unstable soil strata, the use of bentonite fluid assists in stabilising the bore especially in large diameter deeper piles and allows the insertion of heavily reinforcing steel cages. This is known as flush boring (see more below).		In unstable soil strata, the use of bentonite fluid assists in stabilising the bore especially in large diameter deeper piles and allows the insertion of heavily reinforcing steel cages. This is known as flush boring (see more below).

Editor at 13:33, 1 May 2018

2018-05-01T13:33:56Z

← Older revision		Revision as of 13:33, 1 May 2018
Line 7:		Line 7:
	Bored piles are piles where the removal of spoil forms a hole for a reinforced concrete pile which is poured in situ. The spoil is replaced by the pile, hence 'replacement' piles as opposed to displacement piles where soil is forced away by driving or screwing the pile.		Bored piles are piles where the removal of spoil forms a hole for a reinforced concrete pile which is poured in situ. The spoil is replaced by the pile, hence 'replacement' piles as opposed to displacement piles where soil is forced away by driving or screwing the pile.

−	Bored piles are used primarily in cohesive subsoils for the formation of friction piles and when forming pile foundations close to existing buildings. They are popular; in urban areas as there is minimal vibration, where headroom is limited, where there is no risk of heave and if there is a need to vary the length of the piles.	+	Bored piles are used primarily in cohesive subsoils for the formation of friction piles and when forming pile foundations close to existing buildings. They are popular in urban areas as there is minimal vibration, where headroom is limited, where there is no risk of heave and if there is a need to vary the length of the piles.

	=== Installation ===		=== Installation ===

Editor at 16:17, 30 April 2018

2018-04-30T16:17:10Z

← Older revision		Revision as of 16:17, 30 April 2018
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	* Socket piles.		* Socket piles.
	* Tension piles.		* Tension piles.
		+	* Testing pile foundations.
	* Underpinning.		* Underpinning.

Editor at 12:12, 30 April 2018

2018-04-30T12:12:37Z

← Older revision		Revision as of 12:12, 30 April 2018
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	* Secant pile wall.		* Secant pile wall.
	* Sheet piles.		* Sheet piles.
		+	* Socket piles.
	* Tension piles.		* Tension piles.
	* Underpinning.		* Underpinning.

Editor at 15:50, 8 March 2018

2018-03-08T15:50:51Z

← Older revision		Revision as of 15:50, 8 March 2018
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	* End-bearing piles.		* End-bearing piles.
	* Foundations.		* Foundations.
		+	* Friction piles.
	* Geothermal pile foundations.		* Geothermal pile foundations.
	* Groundworks.		* Groundworks.

Editor at 15:35, 8 March 2018

2018-03-08T15:35:25Z

← Older revision		Revision as of 15:35, 8 March 2018
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	* Continuous flight auger piles.		* Continuous flight auger piles.
	* Driven piles.		* Driven piles.
		+	* End-bearing piles.
	* Foundations.		* Foundations.
	* Geothermal pile foundations.		* Geothermal pile foundations.