A structural parameter reflecting coupling action between shear stress and spherical stress

DENG Guo-hua; SHAO Sheng-jun; CHEN Chang-lu; SHE Fang-tao

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A structural parameter reflecting coupling action between shear stress and spherical stress

更新时间：2026-06-25

- A structural parameter reflecting coupling action between shear stress and spherical stress
- Vol. 33, Issue 8, (2012)
- 作者机构：
  
  1. 西安市地下铁道有限责任公司,西安,710018
  2. 西安理工大学岩土工程研究所,西安,710048
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU431
- Online First：13 August 2012，
  
  Published：2012
- 稿件说明：
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DENG Guo-hua, SHAO Sheng-jun, CHEN Chang-lu, et al. A structural parameter reflecting coupling action between shear stress and spherical stress[J]. 2012, 33(8).
DOI：

DENG Guo-hua, SHAO Sheng-jun, CHEN Chang-lu, et al. A structural parameter reflecting coupling action between shear stress and spherical stress[J]. 2012, 33(8). DOI：

摘要

土的结构性是岩土材料的基本特性，基于综合结构势理论建立的结构性参数，以表述土的结构性，但已有的表述存在缺陷，为此针对应变和应力结构性参数的缺点提出了一个可同时考虑球应力和剪应力作用的结构性参数——应力比结构性参数。通过理论分析和三轴试验研究发现，应力比结构性参数与应力或应变结构性参数相比，可同时考虑剪应力和球应力对土结构性的影响，并且剪切过程中结构性参数不再出现峰值，更符合人们以往对结构性的认识。该参数从定量上更加准确地反映了土的结构性。

Abstract

Based on structure parameters of soil established by the theory of comprehensive structure potential and the defects of structure parameters

a new structure parameter which is stress ratio structure parameter is proposed

it can reflect the coupling action of shear stress and spherical stress. Through theoretical analysis and triaxial test research

it is found that the stress ratio structure parameter can consider the influence of both of shear stress and spherical stress on soil structure

and its value no longer reach peak in the process of shearing which consist with the traditional recognition of soil structure. Namely

it can reflect the soil structure more accurately from the quantitative aspects.

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