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| 矿井岩爆数值模拟及应力状态分析 | |
| 引用本文： | 李振华,戎涛,徐高明. 矿井岩爆数值模拟及应力状态分析[J]. 辽宁工程技术大学学报(自然科学版), 2010, 29(1) |
| 作者姓名： | 李振华 戎涛 徐高明 |
| 作者单位： | 1. 河南理工大学,能源科学与工程学院,河南,焦作,454000;中国矿业大学(北京)资源与安全工程学院,北京,100083 2. 河南理工大学,能源科学与工程学院,河南,焦作,454000 3. 中国矿业大学(北京)资源与安全工程学院,北京,100083 |
| 基金项目： | 河南省重点基金资助项目(0623021400) |
| 摘 要： | 为了得出岩爆与应力分布状态之间的关系,为制定合理的岩爆预防及治理措施提供依据,采用数值模拟的方法,研究了岩爆巷道的围岩应力状态。结果表明:非均匀薄壁应力现象的存在,是掘进工作面岩爆频发的重要原因;对于硬脆性的围岩体,在受到扰动时,由于巷道围岩体内的应力集中峰值距离巷道表面距离较近,应力集中峰值就可能超过岩体破坏的极限强度,从而使岩石突然破坏,发生岩爆现象。该成果对岩爆的预防具有一定的参考价值和指导意义。 |
| 关 键 词： | 采矿工程 岩爆 数值模拟 应力分析 |
Numerical simulation and stress analysis of rock burst in mine |
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| LI Zhenhua,RONG Tao,XU Gaoming. Numerical simulation and stress analysis of rock burst in mine[J]. Journal of Liaoning Technical University (Natural Science Edition), 2010, 29(1) | |
| Authors: | LI Zhenhua RONG Tao XU Gaoming |
| Affiliation: | 1. School of Energy Science & Engineering;Henan Polytechnic University;Jiaozuo 454000;China;2. School of Resource and Safety Engineering;China University of Mining & Technology;Beijing 10083;China |
| Abstract: | In order to obtain the relationship between rock burst and stress distribution,and provide a basis for taking rational precaution measures on rock bursts,a numerical simulation method is used to model the rock stress in a rock roadway. The results show that non-uniform thin-walled stress is the main reason of the frequent rock burst in driving roadway. When a hard-brittle rock body is disturbed,the stress concentration may exceed the strength limit of rock,and lead to rock burst because the stress concentra... |
| Keywords: | mining engineering rock burst numerical simulation stress analysis |
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