Centrifuge model test on ground settlement induced by tunneling in sandy soil

Zhou Xiao-wen; Pu Jia-liu

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Centrifuge model test on ground settlement induced by tunneling in sandy soil

更新时间：2026-06-25

- Centrifuge model test on ground settlement induced by tunneling in sandy soil
- Vol. 23, Issue 5, (2002)
- 作者机构：
  
  1. 长江科学院土工研究所,湖北,武汉,430010
  2. 清华大学水利水电工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411.93
- Online First：04 September 2016，
  
  Published：2002
- 稿件说明：
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Zhou Xiao-wen, Pu Jia-liu. Centrifuge model test on ground settlement induced by tunneling in sandy soil[J]. 2002, 23(5).
DOI：

Zhou Xiao-wen, Pu Jia-liu. Centrifuge model test on ground settlement induced by tunneling in sandy soil[J]. 2002, 23(5). DOI：

摘要

利用离心模型试验研究隧洞开挖中支护压力P与地层位移S的关系以及地面沉降槽的形态。得到归一化P-S曲线和沉降槽计算参数。还分析了土类、密度和含水量对地层位移的影响。

Abstract

The centrifuge model tests were performed to investigate the ground settlements during tunnel excavation in sandy soil ground. A columnar rubber membrane tube was used to represent a tunnel. Compressed air was supplied to it to create a uniform pressure to support the surrounding soil. During centrifuge running

air pressure was gradually decreased to simulate the initial stress release; i.e.

to simulate the excavating process. Through different combinations of test conditions including soil type

density

water content and tunnel embedment depth; the ground failure patterns and settlements were examined; the normalized P-S relationship were obtained and discussed..

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