中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉岩土力学研究所
  3. 中科院武汉岩土力学所
Modelling three-dimensional stress-dependent failure of hard rocks

文献类型：期刊论文

作者Feng, Xia-Ting1; Wang, Zhaofeng2,3; Zhou, Yangyi1; Yang, Chengxiang1; Pan, Peng-Zhi1,2,3; Kong, Rui1
刊名ACTA GEOTECHNICA
出版日期2021-01-03
页码31
ISSN号1861-1125
关键词Hard rock Numerical modelling True triaxial compression Stress-induced anisotropy 3D stress-dependent failure 3D stress-dependent brittleness
DOI10.1007/s11440-020-01110-8
英文摘要Hard rocks exhibit three-dimensional (3D) stress-dependent failure under true triaxial compression. The deformability and strength of hard rocks under true triaxial compression differ from those under traditional loading schemes of conventional triaxial compression tests. For the purpose of characterizing these distinctive features, including 3D stress-dependent brittleness and the failure process and 3D stress-induced anisotropy, a new model suited for hard rocks was proposed in this paper. In the new model, the 3D stress-dependent brittleness under true triaxial compression tests was reflected by a determination method of the internal variable considering the influences of both sigma(2) and sigma(3). For the failure process, different evolutions in cohesion and the friction angle were applied to realize different failure processes under different 3D stresses, and their 3D stress dependency was identified by the 3D brittleness index defined in this paper. The 3D stress-induced anisotropy involved in the deformation and failure of hard rocks under true triaxial compression was described via the deformation modulus evolution. The formulation for the stress-induced stiffness matrix and the model framework is fully thermodynamically consistent. The model was implemented in the 3D elasto-plastic cellular automaton system, and good agreement was achieved between the numerical simulation and experimental results, indicating that the new model can be applied to describe the failure behaviours of hard rocks under 3D stress.
资助项目National Natural Science Foundation of China[51621006] ; National Natural Science Foundation of China[51839003]
WOS研究方向Engineering
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000604477100001
源URL[http://119.78.100.198/handle/2S6PX9GI/25479]  
专题中科院武汉岩土力学所
通讯作者Feng, Xia-Ting
作者单位1.Northeastern Univ, Key Lab Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Xia-Ting,Wang, Zhaofeng,Zhou, Yangyi,et al. Modelling three-dimensional stress-dependent failure of hard rocks[J]. ACTA GEOTECHNICA,2021:31.
APA Feng, Xia-Ting,Wang, Zhaofeng,Zhou, Yangyi,Yang, Chengxiang,Pan, Peng-Zhi,&Kong, Rui.(2021).Modelling three-dimensional stress-dependent failure of hard rocks.ACTA GEOTECHNICA,31.
MLA Feng, Xia-Ting,et al."Modelling three-dimensional stress-dependent failure of hard rocks".ACTA GEOTECHNICA (2021):31.

入库方式： OAI收割

来源：武汉岩土力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。