断层防水煤柱的数值模拟研究

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英文篇名：Numerical Simulation Study on the Waterproof Coal Pillars of Faults 作者：隋岩刚 ; 李新凤 ; 赵文娟 英文作者：Sui Yan-gang;Li Xin-feng;Zhao Wen-juan;Shandong Provincial Research Institute of Coal Geology Planning and Exploration;Geophysical Prospecting and Surveying Team,Shandong Bureau of Coal Geological Exploration;Taishan Polytechnic; 关键词：济阳煤矿 ; 防水煤柱 ; 数值模拟 英文关键词：Jiyang coal mine;;waterproof coal pillars;;numerical simulation 中文刊名：MTSD 英文刊名：Shandong Coal Science and Technology 机构：山东省煤田地质规划勘察研究院;山东省煤田地质局物探测量队;泰山职业技术学院; 出版日期：2013-08-15 出版单位：山东煤炭科技 年：2013 期：No.158 语种：中文; 页：MTSD201304058 页数：2 CN：04 ISSN：37-1236/TD 分类号：95-96

摘要

运用FLAC-3D软件对济阳煤矿中部的李家断层的防水煤柱进行了数值模拟研究。通过留设不同宽度的保护煤柱,分析煤层周围及断层附近塑性区及最小主应力变化情况,得出了断层煤柱的合理留设宽度,1煤和7煤的保护煤柱宽度分别为50m和70m。断层煤柱的合理留设为采区煤层安全开采提供了保障。
        The waterproof coal pillars of the Lijia fault which was in the middle of the Jiyang coal mine were studied by numerical simulation adopting FLAC- 3D software when mining the first and the seventh coal seams. By leaving different width's coal pillars,the changing of the plastic zone and the smallest main stress was analysed and the coal pillars' rational leaving width was obtained. The first and the seventh coal seams' waterproof coal pillars were respectively fifty meters and seventy meters. The rational leaving of the fault's waterproof coal pillars will ensure the safe mining in the section.

引文

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