Study of Choice Behavior on the Super-long Uplift Piles in Mollisol Area

An Jingbo; Zhao Siyuan; Deng Zhihui

doi:10.3969/j.issn.1007-2993.2009.06.004

Volume 23 Issue 6

Jul. 2021

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An Jingbo, Zhao Siyuan, Deng Zhihui. Study of Choice Behavior on the Super-long Uplift Piles in Mollisol Area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2009, 23(6): 284-287. doi: 10.3969/j.issn.1007-2993.2009.06.004

Citation:

An Jingbo, Zhao Siyuan, Deng Zhihui. Study of Choice Behavior on the Super-long Uplift Piles in Mollisol Area[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2009, 23(6): 284-287. doi: 10.3969/j.issn.1007-2993.2009.06.004

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Study of Choice Behavior on the Super-long Uplift Piles in Mollisol Area

doi: 10.3969/j.issn.1007-2993.2009.06.004

1. Shanghai Foundation Surveying Institute of the Civil Defence, Shanghai 200232, China;
2. State Key Laboratory for Geomechanics & Deep Undergound Engineering, Xuzhou 221008, Jiangsu, China

Received Date: 2009-07-22

Abstract

Abstract

The long uplift piles are researched in this paper through the comparative analysis of conventional straight piles, grouting piles and under-reamed piles. The theoretical equation of load-displacement is derived by a mathematical model. The mechanism of increasing load-carrying capacity and load transfer law of the different piles are studied by analysising the load-carrying capacity when the displacement of the pile top is 30 mm, and the distribution of frictional resistances of different style of piles in a mollisol area of coastal. The grouting straight piles should be the priority selection because of the increase of safety probability.
- uplift pile,
- conventional pile,
- enlarged base pile,
- post grouting pile,
- critical length of pile