Study on particle failure process of calcareous sand under triaxial compression

SUN Ji-zhu; WANG Ren

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Study on particle failure process of calcareous sand under triaxial compression

更新时间：2026-06-25

- Study on particle failure process of calcareous sand under triaxial compression
- Vol. 24, Issue 5, (2003)
- 作者机构：
  
  1. 武汉理工大学土木建筑学院,湖北,武汉,430070
  2. 中国科学院武汉岩土力学研究所,湖北,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：19 August 2014，
  
  Published：2003
- 稿件说明：
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SUN Ji-zhu, WANG Ren. Study on particle failure process of calcareous sand under triaxial compression[J]. 2003, 24(5).
DOI：

SUN Ji-zhu, WANG Ren. Study on particle failure process of calcareous sand under triaxial compression[J]. 2003, 24(5). DOI：

摘要

提出了钙质砂在载荷作用下同时存在颗粒破碎和滑移两种变形机制，二者分别采用弹性损伤模型和边界面塑性模型予以描述，在模型中考虑颗粒损伤率对峰值应力比的影响。计算发现，围压和固结应力比增加使声发射活动增强，进而从微观机制上分析了原因。

Abstract

It is presented that the particle slides and itself is damaged simultaneously when loading，which are described by boundary surface plastic model and elastic damaged model respectively

the influence of particle failure on peak stress ratio is considered. Computation shows acoustic emission rises if the confining pressure and consolidation stress ratio increased

further it is discussed from micro-mechanism.

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