THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE

Yang Qi’an; Shen Baohan

doi:10.13204/j.gyjz201301015

Volume 43 Issue 1

Dec. 2014

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Abstract

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Yang Qi’an, Shen Baohan. THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 67-70. doi: 10.13204/j.gyjz201301015

Citation:

Yang Qi’an, Shen Baohan. THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 67-70. doi: 10.13204/j.gyjz201301015

Yang Qi’an, Shen Baohan. THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 67-70. doi: 10.13204/j.gyjz201301015

Citation:

Yang Qi’an, Shen Baohan. THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 67-70. doi: 10.13204/j.gyjz201301015

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THE BEARING MECHANISM AND CALCULATION METHOD OF BEARING CAPACITY OF SCREW PILE

doi: 10.13204/j.gyjz201301015

Yang Qi’an¹,
Shen Baohan²

1.
1. Beijing Building Research Institute Co Ltd,CSCEC,Beijing 100079,China;
2.
2. Beijing Building Construction Research Institute Co Ltd,Beijing 100039,China

Received Date: 2012-04-16
Publish Date: 2013-01-20

Abstract

Abstract

The screw pile is a new kind of casting concrete pile which is of screw pitch on pile body.According to theoretical analysis and testing research,if the screw pitch is short,when loaded,screw thread moves with soil around it,similar to multistage expanding pile.When the bearing capacity of screw pile reaches to the ultimate load,it will be broken through the cylndrical surface out of pile,and the bearing capacity is sum of shear resistance between soil and screw threads and end resistance.Several calculation methods of bearing capacity of screw pile were introduced and also the merits and demerits of the calculation methods were analyzed too.In order to supply simple and convenient calculating method,based on the traditional calculation method,a new calculation method of screw pile bearing capacity was proposed and the factor of equivalent shaft resistance on screw piles to shaft resistance of bored pile in dry operation was analyzed and calculated theoretically,the calculating factor was put forward for engineering design.
- screw pile,
- screw pitch,
- bearing capacity,
- shaft resistance,
- end bearing,
- equivalent lateral resistance

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References(10)

References

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