Strain-softening analysis of a spherical cavity
文献类型：期刊论文
| 作者 | Wu, Zhenjun1; Yin, Shunde2; Wang, Shuilin1 |
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2012 |
| 卷号 | 36期号:2页码:182-202 |
| 关键词 | spherical cavity strain-softening Mohr-Coulomb criterion Hoek-Brown criterion complete stress-strain curve |
| ISSN号 | 0363-9061 |
| DOI | 10.1002/nag.1002 |
| 英文摘要 | This paper studies the excavation of a spherical cavity subjected to hydrostatic initial stresses in the infinite homogeneous and isotropic rock mass with strain-softening MohrCoulomb (M-C) and HoekBrown (H-B) behaviors. Numerical solutions of the spherical cavity are obtained and the application to determining stressstrain curve of strain-softening M-C and H-B rock mass is studied. A closed-form solution for the elasticbrittleplastic medium is introduced first, and then a numerical procedure that simplifies the strain-softening process into a series of brittleplastic ones is presented. The approach is validated against the facts that the strain-softening process evolves into a brittleplastic one when the softening slope is very steep, whereas it evolves into an elasto-plastic one when the softening slope approaches zero. Numerical solutions for the prediction of displacements and stresses around the spherical cavity in the strain-softening M-C and H-B rock mass are presented. On the basis of the analysis of the spherical cavity in strain-softening rock mass, the stressstrain relationship at an infinitesimal cube around the cavity is obtained and discussed with different evolution laws for the strength parameters considered. Copyright (c) 2011 John Wiley & Sons, Ltd. |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000298945800005 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3333]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Univ Wyoming, Dept Chem & Petr Engn |
| 推荐引用方式 GB/T 7714 | Wu, Zhenjun,Yin, Shunde,Wang, Shuilin. Strain-softening analysis of a spherical cavity[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2012,36(2):182-202. |
| APA | Wu, Zhenjun,Yin, Shunde,&Wang, Shuilin.(2012).Strain-softening analysis of a spherical cavity.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,36(2),182-202. |
| MLA | Wu, Zhenjun,et al."Strain-softening analysis of a spherical cavity".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 36.2(2012):182-202. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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