Triaxial tests on unsaturated expansive soils with different initial dry densities

CHEN Ke-jun; MIAO Lin-chang; CUI Ying

doi:10.16285/j.rsm.2005.s1.020

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Triaxial tests on unsaturated expansive soils with different initial dry densities

更新时间：2026-06-25

- Triaxial tests on unsaturated expansive soils with different initial dry densities
- Issue S1, Pages: 87-90(2005)
- 作者机构：
  
  1. 东南大学岩土工程研究所
  2. 东南大学岩土工程研究所,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2005.s1.020
  CLC： TU411
- Published：2005
- 稿件说明：
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[1]陈可君,缪林昌,崔颖.不同干密度非饱和膨胀土的三轴试验研究[J].岩土力学,2005(S1):87-90.

CHEN Ke-jun, MIAO Lin-chang, CUI Ying. Triaxial tests on unsaturated expansive soils with different initial dry densities[J]. 2005, (S1): 87-90.
[1]陈可君,缪林昌,崔颖.不同干密度非饱和膨胀土的三轴试验研究[J].岩土力学,2005(S1):87-90. DOI： 10.16285/j.rsm.2005.s1.020.

CHEN Ke-jun, MIAO Lin-chang, CUI Ying. Triaxial tests on unsaturated expansive soils with different initial dry densities[J]. 2005, (S1): 87-90. DOI： 10.16285/j.rsm.2005.s1.020.

摘要

重塑非饱和膨胀土的结构特征是影响其强度和变形等性质的重要因素。在不同初始干密度下击实的试样具有不同的初始结构。吸力和净围压的作用使得试样结构产生变化

从而呈现出不同的剪切特征。进行了一系列的控制吸力的三轴试验

试验结果表明

吸力和净围压的增加使得试样的抗剪强度提高

剪胀性减小;初始干密度大的试样也有更高的强度

且呈现出明显的剪胀现象。

Abstract

The structaral characteristics is of great importance to unsaturated soils; soils compacted with different initial dry densities have different structural characteristics. A series of triaxial tests were undertaken on a remolded unsaturated expansive soil. It appears that the strength of unsaturated soils increases with net confining pressure and suction

but the tendency to dilate diminishes with them. Soils with higher initial dry density have higher strength and more tendency to dilate when shearing.

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Related Author

CHEN Ke-jun

MIAO Lin-chang

CUI Ying

SHEN Chun-ni

FANG Xiang-wei

WANG He-wen

SUN Shu-guo

GUO Jian-feng

Related Institution

School of Civil Engineering and Architecture, Chongqing University of Science and Technology

Department of Architectural and Civil Engineering, Logistic Engineering University

Department of Civil and Environmental Engineering, the Hong Kong University of Science and Technology

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Wuhan Municipal Engineering Design Institute

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