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| 孙疃矿底板破坏的数值模拟及现场实测 |
| The numerical simulation and field measurement of the floor damage in Suntuan Coal Mine |
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| DOI： |
| 中文关键词: 流固耦合;数值模拟;底板实测;电阻率CT探测 |
| 英文关键词: fluid-structure interaction; numerical simulation; backplane measured; the resistivity CT detection |
| 基金项目: |
| 作者 | 单位 | | 李文敏,陈晶晶,黄东兴,杨志雄 | 广东宏大爆破有限公司 大宝山项目部,广东 韶关 512000 |
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| 中文摘要: |
| 结合淮北孙疃煤矿的工程地质条件,利用FLAC3D数值模拟软件的流固耦合功能,对孙疃煤矿1028工作面进行数值模拟,数值模拟分析得到底板最大破坏深度为24 m,承压水导升高度为12 m,工作面不会发生突水事故.同时布置钻孔在孙疃矿1028工作面上回风巷上,以对煤层底板进行现场电阻率CT探测,探测结果分析得到煤层底板的最大破坏深度为17 m,底板仍然具有完整隔水层,不会发生突水.将得到的实测结果与数值模拟结果进行对比,得出数值模拟结果与现场实测相近. |
| 英文摘要: |
| Combined with the engineering geological conditions of Suntuan Coal Mine in Huaibei, and by using FLAC3D numerical simulation software of fluid-structure interaction function, the numerical simulation is carried out on the Suntuan Coal Mine 1028 working face, the numerical simulation analysis for floor maximum damage depth is 24 m, confined water guide to rise height is 12 m, and working face water inrush accidents will not occur. Meanwhile, the borehole on Suntuan Coal Mine 1028 working face return air lane is arranged, to conduct site resistivity CT detection of coal floor. By analyzing the detection results, it concludes that the largest coal floor damage depth is 17 m, the floor is still full of water-resisting layer, and water inrush will not occur. The test results are compared with the numerical simulation results, and the results of numerical simulation and field measurement are much close. |
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