| 综采覆岩破坏离散元数值模拟分析 |
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| 引用本文： | 白汉营,李文平,李佩全.综采覆岩破坏离散元数值模拟分析[J].煤炭工程,2010(2). |
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| 作者姓名： | 白汉营 李文平 李佩全 |
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| 作者单位： | 1. 中国矿业大学,江苏,徐州,221116
2. 淮南矿业集团有限公司,安徽,淮南,232000 |
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| 摘 要： | 采用离散元数值模拟的方法研究煤层综放开采覆岩破坏规律,对数值模型的计算结果分析得出:通过提高综采支架支护阻力,可抑制工作面控顶区附近顶板采动裂隙发育高度,使其不波及松散含水层,从而实现高承压松散含水层下,提高上限安全开采目的,为高承压松散含水体下缩小安全煤岩柱开采,合理解放和回收防水煤柱内所呆滞的煤炭资源提供了理论基础。
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| 关 键 词： | 离散元数值模拟 覆岩破坏带 松散含水层 |
Analysis on discrete element numerical simulation of overburden strata failure above fully mechanized coal mining face |
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| BAI Han-ying,LI Wen-ping,LI Pei-quan.Analysis on discrete element numerical simulation of overburden strata failure above fully mechanized coal mining face[J].Coal Engineering,2010(2). |
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| Authors: | BAI Han-ying LI Wen-ping LI Pei-quan |
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| Affiliation: | 1.China University of Mining and Technology/a>;Xuzhou 221116/a>;China/a>;2.Huainan Coal Mining Group Corporation Ltd./a>;Huainan 232000/a>;China |
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| Abstract: | The discrete element numerical simulation method was applied to study the overburden strata failure law above the fully mechanized top coal caving mining face.The analysis on the calculation results of the numerical mode showed that with the support resistance improved of the powered supports in the fully mechanized top coal caving mining face,the mining cracking height in the roof near the main roof control area above the coal mining face could be controlled.Thus the cracking controlled would not be affect... |
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| Keywords: | discrete element numerical simulation failure zone of overburden strata soft and broken aquifer |
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