| 一种确定坚硬顶板下极近距离煤层同采下煤层巷道位置的方法 |
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| 引用本文： | 储欣欣,査文华,李雪,殷石阳. 一种确定坚硬顶板下极近距离煤层同采下煤层巷道位置的方法[J]. 煤炭技术, 2014, 0(9): 109-111 |
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| 作者姓名： | 储欣欣 査文华 李雪 殷石阳 |
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| 作者单位： | 安徽理工大学煤矿安全高效开采省部共建教育部重点实验室;安徽理工大学能源与安全学院 |
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| 摘 要： | 针对山西集广煤矿9#和10#极近距离煤层同采的工程背景,对上位煤层开采后对底板的影响进行了力学理论分析,得出上煤层开采对底板的破坏深度,评估了下煤层回采巷道布置于几种位置的可行性,并利用FLAC3D数值模拟得出外错的最佳距离。经过现场工业性试验,巷道支护效果较好,未出现强烈的矿压显现。
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| 关 键 词： | 极近距离煤层 巷道布置 底板破坏 力学分析 数值模拟 |
Method of Determining Position of Lower Roadways When Having Extremely Close Coal Seam Mining under Hard Roof |
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| CHU Xin-xin;ZHA Wen-hua;LI Xue;YIN Shi-yang. Method of Determining Position of Lower Roadways When Having Extremely Close Coal Seam Mining under Hard Roof[J]. Coal Technology, 2014, 0(9): 109-111 |
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| Authors: | CHU Xin-xin ZHA Wen-hua LI Xue YIN Shi-yang |
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| Affiliation: | CHU Xin-xin;ZHA Wen-hua;LI Xue;YIN Shi-yang;Key Laboratory of Mine Safety and High Efficient Mining Cosponsored by Anhui Province and Ministry of Education,Anhui University of Science and Technology;School of Energy and Safety,Anhui University of Science and Technology; |
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| Abstract: | Based on 9# and 10# extremely close distance coal seam mining engineering background in Ji guang coal mine in Shanxi Province,had theoretical analysis for the influence of upper coal seam mining on the lower floor.It is concluded that the depth of the damage of the floor after upper coal mining.The assessment of the coal seam mining under the arrangement in the feasibility of several kinds of location,and the optimum distance of external fault of FLAC3 Dnumerical simulation.After the site industrial test,the roadway support effect is good,does not appear strong pressure. |
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| Keywords: | extremely close distance coal seam roadway layout floor damage mechanics analysis numerical simulation |
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