黏性土剪切带的形成与其屈服的内在联系的探索

董建国; 李 蓓

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黏性土剪切带的形成与其屈服的内在联系的探索

基础理论与实验研究 | 更新时间：2026-06-25

- 黏性土剪切带的形成与其屈服的内在联系的探索
- Study on internal relations between formation of shear bands and its yield in clay
- 岩土力学 2007年28卷第5期
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 水利部太湖流域管理局,上海,200434
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TU43
- 网络首发：2013-09-10，
  
  纸质出版：2007
- 稿件说明：
移动端阅览
董建国, 李蓓. 黏性土剪切带的形成与其屈服的内在联系的探索[J]. 岩土力学, 2007,28(5).

DONG Jian-guo, LI Bei. Study on internal relations between formation of shear bands and its yield in clay[J]. 2007, 28(5).
董建国, 李蓓. 黏性土剪切带的形成与其屈服的内在联系的探索[J]. 岩土力学, 2007,28(5). DOI：

DONG Jian-guo, LI Bei. Study on internal relations between formation of shear bands and its yield in clay[J]. 2007, 28(5). DOI：

摘要

为了深入了解黏性土的应力应变特性，对黏性土进行了量测侧向变形的不排水平面应变压缩试验。分析试验结果发现，黏性土局部化变形的起始点与黏性土样中的孔隙水压力的突然增长的转折点非常接近，而孔隙水压力开始急剧增长变化的转折点为其屈服点，说明黏性土剪切带开始形成的偏应力为其屈服点，超过此点后黏性土局部化变形加剧，这个发现将有助于土体在强度理论、变形和稳定分析等方面的深入研究。

Abstract

In order to find a thorough stress-strain characteristic in clay

a series of consolidation undrained plane strain compression experiments were made. Local lateral non-homogeneous deformation in the samples were recorded. Through analysis for the experimental results

it is found that characteristic values of localized deformation began to form are very close to suddenly increased turning point of the pore water pressure. But the suddenly increased turning point of the pore water pressure is its yield point in clay soil. It is shown that the deviator stress of shear band began to form is very close to its yield point in clay soil. Exceeding this point

the localized deformation speeds up. The discovery will conduce to a thorough study on strength theory

deformation and stability analysis in soil.

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