Deformation mechanism and support measures for stress-induced cracked rock mass of deep coal mine roadway
文献类型：会议论文
| 作者 | Lu, Xingli; Liu, Quansheng; Su, Peifang |
| 出版日期 | 2011 |
| 会议日期 | OCT 10-12, 2010 |
| 会议地点 | Shanghai, PEOPLES R CHINA |
| 关键词 | voronoi micro-mechanical model stress-induced cracked rock mass discontinuum analysis nonlinear large deformation support measures |
| 页码 | 845-853 |
| 英文摘要 | Considering the broken status and the characters of strong nonlinear mechanical phenomenon of surrounding rocks in the return airway at the -648 m level in Gubei colliery, a Voronoi micro-mechanical model has been developed to represent the stress-induced cracked rock mass properties in which slip and separation of contacting rock blocks can be estimated. Two-dimensional discontinuum analyses are used to study the deformation and damage process and nonlinear large deformation mechanism of the return airway. Based on the above research, the stepped combined support method is put forward and employed. Through numerical simulation and field monitoring, the support method is analyzed and verificated. It is concluded that the main reason for nonlinear large deformation of roadway is the collapse or sliding of local key blocks, and the Voronoi micro-mechanical model is more illustrative in demonstrating the nonlinear large deformation mechanism of deep roadway. Besides, the applied support scheme is an effective method to control the nonlinear large deformation of broken surrounding rocks, and can ensure the stability of deep roadway. |
| 源文献作者 | Jiang, MJ ; Liu, F ; Bolton, M |
| 会议录 | GEOMECHANICS AND GEOTECHNICS: FROM MICRO TO MACRO, VOLS 1 AND 2
 |
| 会议录出版者 | CRC PRESS-TAYLOR & FRANCIS GROUP |
| 会议录出版地 | BOCA RATON |
| 语种 | 英语 |
| WOS研究方向 | Engineering |
| WOS记录号 | WOS:000291373800128 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4603]  |
| 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 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Lu, Xingli,Liu, Quansheng,Su, Peifang. Deformation mechanism and support measures for stress-induced cracked rock mass of deep coal mine roadway[C]. 见:. Shanghai, PEOPLES R CHINA. OCT 10-12, 2010. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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