ISOLATION METHOD OF WIPING OFF UNEMPLOYED SEGMENT PILE SHAFT RESISTANCE IN STATIC LOAD TEST

Zou Dong-feng; Xu Han; Zhong Dong-bo

doi:10.13204/j.gyjz200704007

Volume 37 Issue 4

Dec. 2014

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Zou Dong-feng, Xu Han, Zhong Dong-bo. ISOLATION METHOD OF WIPING OFF UNEMPLOYED SEGMENT PILE SHAFT RESISTANCE IN STATIC LOAD TEST[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(4): 22-24. doi: 10.13204/j.gyjz200704007

Citation:

Zou Dong-feng, Xu Han, Zhong Dong-bo. ISOLATION METHOD OF WIPING OFF UNEMPLOYED SEGMENT PILE SHAFT RESISTANCE IN STATIC LOAD TEST[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(4): 22-24. doi: 10.13204/j.gyjz200704007

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ISOLATION METHOD OF WIPING OFF UNEMPLOYED SEGMENT PILE SHAFT RESISTANCE IN STATIC LOAD TEST

doi: 10.13204/j.gyjz200704007

1.
Central Research Institute of Building and Construction,MCC Group Beijing 100088

Received Date: 2006-10-20
Publish Date: 2007-04-20

Abstract

Abstract

:In pile static load test, effectual isolation method must be adopted to wipe off the unemployed segment pile shaft resistance in order to get the bearing characteristics of a single pile at the actual working elevation, when there is a relatively long unemployed pile segment.It is illustrated with an engineering test example in Beijing that double steel casing method is an efficient way to wipe off the unemployed segment pile shaft resistance.Farther, by comparing the tested result of thework pile, it shows that there will be a risk in directly applying the test result data in project, and the effect of overburden on the test results should be considered in pile foundation design
- static load test,
- pile shaft resistance,
- double steel casing method,
- pile foundaiton

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References

陈仲颐, 周景星, 王洪瑾.土力学.北京:清华大学出版社,1994

[2] JGJ 94-94 建筑桩基技术规范

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