大采深大跨度综放工作面导水裂隙带数值模拟研究

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英文篇名：Numerical Simulation on the Water Flowing Fractured Zone for the Large Mining Depth and Large Span of Fully Mechanized Caving Face 作者：韩璐 ; 施龙青 ; 魏凯 英文作者：Han Lu;Shi Long-qing;Wei Kai;College of Earth Sciences & Engineering, Shandong University of Science and Technology;Shanxian County Energy Co.,LTD., Feicheng Mining Group; 关键词：综放工作面 ; 导水裂隙带 ; 数值模拟 英文关键词：fully mechanized caving face;;water flowing fractured zone;;numerical simulation 中文刊名：MTSD 英文刊名：Shandong Coal Science and Technology 机构：山东科技大学地球科学与工程学院;肥城矿业集团单县能源有限责任公司; 出版日期：2018-09-28 出版单位：山东煤炭科技 年：2018 期：No.217 基金：国家自然科学基金(41572244);; 泰山学者建设工程专项经费资助 语种：中文; 页：MTSD201809065 页数：3 CN：09 ISSN：37-1236/TD 分类号：166-168

摘要

针对龙固煤矿3煤层大采深、大跨度的回采地质条件,以1301N综放工作面为例,采用RFPA数值模拟软件,对1301N工作面顶板导水裂隙带发育高度进行数值模拟,分析3煤层开采时工作面顶板上覆岩层的破坏特征,以及顶板导水裂隙带高度与推进步距的关系,得出顶板导水裂隙带高度经验回归公式,为矿井安全生产提供设计依据。
        According to the geological conditions of mining concluding large mining depth and long span in No.3 coal seam in Longgu Coal Mine, taking 1301 N fully mechanized caving face as an example. Using RFPA numerical simulation software, numerical simulation of the height of water flowing fractured zone on the roof of the 1301 N working face, analysis of failure characteristics of overlying strata on roof of working face during mining of 3 coal seam, and the relationship between the height of the roof water flowing fractured zone and the advancing step distance, the mining depth span of the roof caving height of water flowing fractured zone experience regression formula, provide the design basis for mine safety production.

引文

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