Analysis of size effect on large diameter rock-socketed pile based on self-balance method

GONG Cheng-zhong; HE Chun-lin; GONG Wei-ming; DAI Guo-liang

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Analysis of size effect on large diameter rock-socketed pile based on self-balance method

更新时间：2026-06-25

- Analysis of size effect on large diameter rock-socketed pile based on self-balance method
- Vol. 33, Issue 8, (2012)
- 作者机构：
  
  1. 淮阴工学院,江苏,淮安,223001
  2. 东南大学土木工程学院,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU47
- Online First：13 August 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
GONG Cheng-zhong, HE Chun-lin, GONG Wei-ming, et al. Analysis of size effect on large diameter rock-socketed pile based on self-balance method[J]. 2012, 33(8).
DOI：

GONG Cheng-zhong, HE Chun-lin, GONG Wei-ming, et al. Analysis of size effect on large diameter rock-socketed pile based on self-balance method[J]. 2012, 33(8). DOI：

摘要

基于自平衡测试技术，通过现场的原位测试方法，对大直径嵌岩桩的尺寸效应进行了研究，内容包括桩径尺寸和嵌岩深度变化以及桩端阻力尺寸效应的影响分析等。从测试结果来看，嵌岩桩也存在一定程度的尺寸效应现象。当其他条件一定时，随着桩径的增大，桩侧阻力存在着减小现象；在同一种岩层的情况下，随着嵌岩深度的增大，桩侧阻力发挥也并不相同，嵌岩深度越大，桩侧阻力发挥也越小。实测结果表明，桩周岩石的特性变化对桩侧阻力影响最大，岩石抗压强度越高，桩侧阻力也越大。此外，桩径的变化对桩端阻力的影响更为明显。因此，在大直径嵌岩桩的设计中应注意尺寸效应对桩基承载力的影响。

Abstract

Based on the self-balanced test technology

the size effect on the large diameter rock-socketed pile has been analyzed by using in-situ testing methods

including the change of diameter

the depth socketed in rock and size effect on tip resistance of pile and so on. From the result of test

it can be seen that it exit a certain phenomenon of the size effect on the large diameter rock-socketed pile. With the increasing of pile diameter

the side resistance is decreased while other conditions are invariable. From the socketed depth point of view

the side resistance of pile is not the same in the case of the same rock areas because of the difference of its socketed depth. The greater the depth embedded in rock

the smaller the side resistance of pile. The experimental results show that the character of the rock around the pile has the greatest impact on the pile side resistance. The higher the compressive strength of rock

the side resistance of pile is also greater. In addition

the effect of diameter change on the pile tip resistance is even more apparent. Therefore

the design of large diameter pile should pay attention to the size effect on the bearing capacity in rock areas.

关键词

Keywords

references

Views

1899

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Finite element analysis of size effect of rock-socketed piles

Method for evaluating coral reef rock mass integrity

Study of size effect of deformation of rockmass surrounding tunnel

Effect of aggregate soil size on California bearing ratio values of laterite soil

Numerical simulation of size effect on bearing capacity of large diameter rock-socketed piles under different strengths of surrounding rocks

Related Author

ZHANG Jian-xin

WU Dong-yun

ZHANG Shu-chao

WANG Jin-chao

WANG Chuan-ying

LIU Jian-you

ZHAO Yong

LI Peng-fei

Related Institution

Department of Civil Engineering, Tianjin Institute of Urban Construction

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Economic and Planning Research Institute, Ministry of Railways

Department of Civil Engineering, Tsinghua University

China Railway Engineering Consulting Group Co., Ltd.

AI问答

⁰