Research on critical undrained strength of K0 consolidated soft clays

WANG Qiu-sheng

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Research on critical undrained strength of K0 consolidated soft clays

更新时间：2026-06-25

- Research on critical undrained strength of K0 consolidated soft clays
- Vol. 29, Issue 12, (2008)
- 作者机构：
  
  1. 浙江大学岩土工程研究所,杭州,310027
  2. 中国水利水电科学研究院岩土工程研究所,北京,100044
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411
- Online First：11 August 2013，
  
  Published：2008
- 稿件说明：
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WANG Qiu-sheng. Research on critical undrained strength of K0 consolidated soft clays[J]. 2008, 29(12).
DOI：

WANG Qiu-sheng. Research on critical undrained strength of K0 consolidated soft clays[J]. 2008, 29(12). DOI：

摘要

临界状态土力学中孔隙比-平均有效压力坐标下压缩线和临界状态线可以简化为平行的直线，倾斜的椭圆屈服面是能够考虑土体各向异性的数学表达最简单的屈服面形式。结合临界状态土力学理论和倾斜的椭圆屈服面方程，给出了轴对称和平面应变情况下固结软黏土的临界不排水强度比的解析式，通过一些试验数据对这些解析式进行了验证，最后给出了便于工程应用的临界不排水强度比关于有效内摩擦角的简易表达式。

Abstract

ompression line and critical state line can be simplified as parallel straight lines in space within the framework of critical state soil mechanics. Inclined ellipsoid is the simplest yield surface shape of the model that can take account of anisotropy. Combined with critical state soil mechanics

formulas of undrained strength under consolidation have been proposed; these formulas can be used in triaxial stress conditions and plane strain conditions. Based on a large number of experimental data

the formulas are proved to be true. If other parameters taken as constant

we can get linear relations between the undrained strength ratio and the effective frictional angle. A simplified formula has been proposed for engineering application.

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