土工基础

›› 2012, Vol. 26 ›› Issue (4): 109-111.

• 工程实录 • 上一篇    下一篇

粗砂不排水剪切的真三轴试验研究

 燕全会，杨雪强，杨桂丽   

  1. 广东工业大学土木与交通工程学院，广州 510006
  • 收稿日期:2011-12-21 出版日期:2012-08-20 发布日期:2012-09-07
  • 作者简介:燕全会，男，广东工业大学土木与交通工程学院硕士研究生。

True Triaxial Undrained Shear Tests of a Coarse Sand

YAN Quanhui, YANG Xueqiang， Yang guili   

  1. Civil and Traffic Engineering School, Guangdong University of Technology, Guangzhou, 510006
  • Received:2011-12-21 Online:2012-08-20 Published:2012-09-07

摘要： 通过对福建标准砂进行不同围压、不同中主应力系数下的不排水真三轴剪切试验，分析砂土在不排水状态下的应力与应变特性、强度与变形特性，并研究偏应力、孔隙水压力、应力比、有效主应力比随中主应力系数的变化规律。

关键词: 砂土, 真三轴, 不排水剪切, 中主应力系数

Abstract: A series of true triaxial compression tests of Fujian Standard Sand under different cell pressures and intermediate principal stress coefficients are performed on a true triaxial testing apparatus. The stressstrain characteristics of the coarse sand under the undrained conditions are obtained. The effect of the intermediate principal stress coefficient on the deviatoric stress, pore water pressure, stress ratio, and effective principal stress ratio with the coefficient of variation of principal stress is also discussed in this paper.

Key words: Coarse Sands, True Triaxial Tests, Undrained Shear Tests, Intermediate Principal Stress Coeffecient