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| 侧向压力作用下巷道围岩破坏机理的数值模拟 | |
| 引用本文： | 解联库,李华炜,杨天鸿,唐春安,陈长华,赵兴东. 侧向压力作用下巷道围岩破坏机理的数值模拟[J]. 中国矿业, 2006, 15(3): 54-57 |
| 作者姓名： | 解联库 李华炜 杨天鸿 唐春安 陈长华 赵兴东 |
| 作者单位： | 1. 东北大学,岩石破裂与失稳研究中心·沈阳,110004 2. 华北科技学院·北京,101601 3. 辽宁工程技术大学·阜新,123000 |
| 基金项目： | 教育部科学技术研究项目;辽宁省自然科学基金 |
| 摘 要： | 作者通过应用东北大学岩石破裂与失稳研究中心开发的RFPA^2D程序模拟巷道在侧向压力作用下的破坏过程，了解巷道围岩在侧向压力作用下围岩应力分布状态和围岩非线性渐进破坏机理。巷道围岩在侧向压力作用下首先在巷道拱顶左侧及底板右侧产生拉破坏。产生拉破坏后，应力集中程度减弱。接着应力场向远处转移，最后远处形成的拉裂纹与拱顶右侧及底板左侧的剪切裂纹贯通，造成巷道的_失稳破坏。这些研究工作，对于将来调整矿体回采顺序，选择安全合理的支护方案以及改善围岩应力分布状态，具有一定的指导意义。 |
| 关 键 词： | RFPA2D程序 侧向压力 应力分布 数值模拟 |
| 文章编号： | 1004-4051(2006)03-0054-04 |
| 收稿时间： | 2005-09-11 |
| 修稿时间： | 2005-09-11 |
NUMERICAL SIMULATION ON THE PROGRESSIVE PROCESS OF LANEWAY FAILURE CAUSED BY LATERAL PRESSURE |
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| Xie Lianku,Li Huawei,Yang Tianhong,Tang Chun'an,Chen Changhua,Zhao Xingdong. NUMERICAL SIMULATION ON THE PROGRESSIVE PROCESS OF LANEWAY FAILURE CAUSED BY LATERAL PRESSURE[J]. CHINA MINING MAGAZINE, 2006, 15(3): 54-57 | |
| Authors: | Xie Lianku Li Huawei Yang Tianhong Tang Chun'an Chen Changhua Zhao Xingdong |
| Affiliation: | 1. Center for Rock Instability and Seismicity Research, Northeastern University , Shenyang 110004; 2. North China Institute of Science and Technology , Beijing 101601; 3. LiaoNing Technical University , Fuxin 123000 |
| Abstract: | By using RFPA^2D , which is developed at Center for Rock Instability and Seismicity Research of Northeastern University, authors simulated the progressive process of laneway failure caused by lateral pressure, knew well the stress distribution of rock wall and nolinear progressive fracture. Firstly, tensile cracks took place in the left side of the laneway arch, as well as in the right side of the laneway bottom. After it had taken place, stress concentration will died down. Stress field will also transferred far from the laneway. Finally far tensil cracks connected with shear cracks around the laneway, caused the laneway lose the stability. Simulation and analyzing the failure progress of laneway caused by lateral pressure, is help to choosing supporting mode and adjusting mining sequence. |
| Keywords: | RFPA^2D code Lateral pressure Stress distribution Numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
