Improved direct shear test on soil water content effect on shear strength of contact faces between soil and different structures

WANG Wei; LU Ting-hao; ZAI Jin-min

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Improved direct shear test on soil water content effect on shear strength of contact faces between soil and different structures

更新时间：2026-06-25

- Improved direct shear test on soil water content effect on shear strength of contact faces between soil and different structures
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 绍兴文理学院土木系,浙江,绍兴,312000
  2. 河海大学岩土工程研究所,南京,210098
  3. 南京工业大学岩土工程研究所,南京,210009
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411.3
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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WANG Wei, LU Ting-hao, ZAI Jin-min. Improved direct shear test on soil water content effect on shear strength of contact faces between soil and different structures[J]. 2006, 27(S1).
DOI：

WANG Wei, LU Ting-hao, ZAI Jin-min. Improved direct shear test on soil water content effect on shear strength of contact faces between soil and different structures[J]. 2006, 27(S1). DOI：

摘要

接触面的抗剪强度参数是土与结构相互作用课题的基本问题，分别就土与砖、土与混凝土两种接触面进行了不同含水率的改进直剪试验。修正了对土体内部剪切时剪切面积变化对试验结果的影响。试验结果表明，土与两种结构接触面的摩擦角随含水率增加变化规律一致，但对应的凝聚力随含水率增大呈剪刀型交叉，最终导致抗剪强度数值随含水率增大呈剪刀型交叉。分析表明，接触面的抗剪强度参数与结构的亲水性密切相关。试验结果为相关工程设计提供了依据。

Abstract

Shear strength parameters of soil-structure contact face are essential to soil-structure interaction subject. Experiments on soil-brick and soil-concrete contact faces by direct shear tests are conducted by direct shear tests

respectively. Effect of the decreasing contact area is verified during soil inner shearing tests. The experimental results show that friction angles of the two kinds contact faces decrease with increasing soil water content. On the other hand

their both cohesion forces and shearing strengths appear scissors shape relationship with increasing soil water content. Analysis also indicates that the soil-structure contact face behavior depends strongly on structure hydrophilic property. The experimental research results the good foundation for relative engineering design.

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