Effect of non-homogeneity on limit bearing capacity of rock block
文献类型：会议论文
| 作者 | Song, Li1; Xu, Tao1,2; Xie, Yingyan3 |
| 出版日期 | 2008 |
| 会议日期 | AUG 27-29, 2007 |
| 会议地点 | Urumqi, PEOPLES R CHINA |
| 关键词 | rock block non-homogeneity limit bearing capacity numerical simulation |
| DOI | 10.4028/www.scientific.net/AMR.33-37.631 |
| 页码 | 631 |
| 英文摘要 | Rock is a typical non-homogeneous material. The behavior of a rock block under compression and the process of micro-fracture in that block are phenomena of considerable interest in understanding the strength characterization of brittle rock. In this study, the effect of the non-omogeneity on limit bearing capacity of rock block based on Rock Elasto-Plastic Failure Process Analysis code (REPFPA) are simulated and investigated. Numerical simulations find out that there exists a functional relation between the heterogeneity coefficient and the limit bearing capacity of rock block. For specimens with the same heterogeneity, however, the numerical simulations show that the failure modes depend greatly on the crack initiation location, which is found to be sensitive to the local disorder features within the specimen. In addition, the characteristics of acoustic emissions with the changing of heterogeneity coefficient were also found. These identifications are crucial for better understanding and interpreting the experimental results and consequently, improve our concepts in design or analysis of rock engineering structures. |
| 会议录 | ADVANCES IN FRACTURE AND MATERIALS BEHAVIOR, PTS 1 AND 2
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| 会议录出版者 | TRANS TECH PUBLICATIONS LTD |
| 会议录出版地 | DURNTEN-ZURICH |
| 语种 | 英语 |
| WOS研究方向 | Materials Science |
| WOS记录号 | WOS:000256659600101 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4466]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | 1.Dalian Univ, Ctr Mat Failure Modeling Res ; 2.Chinese Acad Sci, Key Lab Rock & Soil Mech ; 3.Dalian Univ, Coll Civil & Architectural Engn |
| 推荐引用方式 GB/T 7714 | Song, Li,Xu, Tao,Xie, Yingyan. Effect of non-homogeneity on limit bearing capacity of rock block[C]. 见:. Urumqi, PEOPLES R CHINA. AUG 27-29, 2007. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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