土工基础

›› 2012, Vol. 26 ›› Issue (1): 51-55.

• 工程实录 • 上一篇    下一篇

扁铲侧胀试验与应力铲试验关系研究

彭俊伟   

  1. （中铁第四勘察设计院集团有限公司,武汉 430063）
  • 收稿日期:2011-05-16 出版日期:2012-02-20 发布日期:2012-03-23
  • 作者简介:彭俊伟，1982年生，毕业于武汉岩土力学研究所岩土工程专业，现主要从事岩土工程勘察、设计、监测等方面工作。

Studies on the Relationship Between the Results of the Flat Dilatometer and Total Pressure Cell Tests

PENG Junwei   

  1. (China Railway SIYUAN Survey and Design Group Co., Ltd. Wuhan, 430063)
  • Received:2011-05-16 Online:2012-02-20 Published:2012-03-23

摘要： 以弹性理论中的Mindlin解为基础导出了一般饱和黏性土的扁铲侧胀试验与应力铲试验成果间的关系式，并得出应力铲试验中的初始水平总应力σh0大于扁铲侧胀试验中膜片向土中膨胀之前作用在膜片上的接触压力p0。用湖州地区铁路工程的实际资料进行对比分析，结果令人满意。

关键词: 扁板侧胀试验, 应力铲试验, Mindlin解

Abstract: The relationship between the results of horizontal stresses measured from The Flat Dilatometer Test (DMT) and The Total Pressure Cell Test (TPCT) in the saturated clay was developed based on the Mindlin's elastic solution. It is concluded that the initial total stress σ  h0is greater than the contact pressure p0 on the DMT membrane before the inflation. This result was verified by the test results using DMT and TPCT in a railway project in Huzhou area.

Key words: The Flat Dilatometer Test (DMT), Total Pressure Cell Test (TPCT), Mindlin's elastic solution