老窑复合采空区下煤层安全开采技术研究  

Study on coal seam safety mining technology under complex gob of old mine

作　　者：管增伦[1] 

机构地区：[1]中国中煤能源集团有限公司,北京市朝阳区100120

出　　处：《中国煤炭》2017年第9期51-55,共5页China Coal

摘　　要：针对房采采空区下近距离煤层开采时上覆煤柱易失稳,易引发大面积顶板整体垮落灾害的问题,研究了房采采空区下煤层顶板破断特征,并以山西元宝湾煤矿为工程背景,分析了复合采空区下6#煤层顶板大面积垮落的可能性,研究了元宝湾煤矿复合采空区下煤层开采顶板致灾机理。在此基础上,以工作面安全回采为前提,为最大程度地降低顶板处理工程量,提出了以"采前预处理、采中监测分析跟进处理"为原则的顶板处理方案,为相似煤层开采提供借鉴。In view of the large-area roof fall disaster caused by overlying coal pillar instability during close distance coal seams mining under room mining gob, roof fracture features of coal seam under room mining gob were studied, and the possibility of large-area roof fall of No. 6 coal seam under complex gob was analyzed by taking Shanxi Yuanbaowan Coal Mine as engineering background, and the roof disaster-causing mechanism of coal seam mining under complex gob was studied. On this basis, in order to furthest reduce the engineering amount of roof treatment and ensure safety mining, a roof management scheme was put forward whose principle was roof pretreatment before mining and monitoring analysis and follow-up treatment during mining, that provid- ed reference for coal mining with similar conditions.

关 键 词：复合采空区 房采采空区 顶板处理 安全开采技术 顶板破断特征 

分 类 号：TD327.2[矿业工程—矿井建设]