Centrifuge model testing on super-long rock-socketed bored piles under vertical loading

被引：8

作者：

Gao, Rui ^{[1
,2
]}

Zeng, Youjin ^{[3
]}

Zhu, Bin ^{[4
]}

机构：

[1] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China

[2] Univ Nottingham, Sch Civil Engn, Nottingham Ctr Geomech, Nottingham NG7 2RD, England

[3] Nanjing Hydraul Res Inst, Nanjing 210029, Jiangsu, Peoples R China

[4] Wuhan Tianxingzhou Rd Bridge Investment & Dev Co, Wuhan 430015, Hubei, Peoples R China

来源：

GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL | 2011年 / 6卷 / 01期

关键词：

centrifuge model test; super-long rock-socketed bored piles; bearing behavior;

D O I：

10.1080/17486025.2010.521590

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

There are no appropriate theories and methods of computation yet which could quantitatively analyze the stress and strain of super-long rock-socketed bored piles and simulate the full process of pile deformation. The bearing behavior and settlement characteristics are complicated because of the construction techniques, characteristics of overlying deposit soil and rock, pile material, geometrical configuration and load in particular. In this paper, the authors introduce the case of the Tianxingzhou Bridge pile foundation, analyzed through the Centrifuge Model Test (CMT). The results indicate that, for large-diameter rock-socketed bored piles, sufficient pile-soil displacement is essential for the effect of pile lateral friction in overlying soil layers. It is also shown that the load is borne by pile lateral friction and end resistance, and that the load transfer behavior of the rock-socketed pile group foundation has similar characteristics to large-diameter rock-socketed single pile.

引用

页码：21 / 29

页数：9

共 15 条

[1]

Bhattacharya S, 2005, GEOTECHNIQUE, V55, P259, DOI 10.1680/geot.2005.55.3.259

[2] ANALYSIS OF VERTICALLY LOADED PILE GROUPS [J].

CHOW, YK .

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 1986, 10 (01) :59-72

[3] CENTRIFUGE MODEL EXPERIMENTS TO DETERMINE ICE FORCES ON VERTICAL CYLINDRICAL STRUCTURES [J].

CLOUGH, HF ;

VINSON, TS .

COLD REGIONS SCIENCE AND TECHNOLOGY, 1986, 12 (03) :245-259

[4]

JESSBERGER H L, 1989, GROUND FREEZING 88, P407

[5]

Jeyatharan K., 1992, THESIS

[6] Influence of axial load on lateral pile response in liquefiable soils. Part I: physical modelling [J].

Knappett, J. A. ;

Madabhushi, S. P. G. .

GEOTECHNIQUE, 2009, 59 (07) :571-581

[7] Influence of axial load on lateral pile response in liquefiable soils. Part II: numerical modelling [J].

Knappett, J. A. ;

Madabhushi, S. P. G. .

GEOTECHNIQUE, 2009, 59 (07) :583-592

[8]

Lach P. R., 1993, 4 CAN C MAR GEOT ENG, P356

[9]

Madabhushi S. P. G., 2010, DESIGN PILE FDN LIQU

[10]

Malushitshky Y. N., 1981, CENTRIFUGAL MODEL TE

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