房柱采空区下长壁开采工作面支架支护强度研究  

Supporting Density of Long-wall Mining Face under Room-and-pillar Gob

作　　者：解兴智[1,2] 范志忠[1,2] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室,北京100013

出　　处：《煤矿开采》2014年第4期108-111,共4页Coal Mining Technology

基　　金：国家自然科学青年基金资助项目(51304115);国家"十二五"科技支撑计划项目(2012BAK04B08);天地科技"公司研发项目"(KJ-2013-TDKC-03)

摘　　要：分析了房柱采空区下长壁开采顶板结构,认为房柱式采空区上部覆岩层基本顶在一定的采高范围内存在"叠合梁"结构,建立了支护强度理论分析模型,与数值结合进一步确定了鄂尔多斯凯达煤矿1603中房柱式采空下长壁综采工作面合理支护强度,开采实践验证了该方法的合理性。This paper analyzed roof structure of long-wall mining under room-and-pillar gob.It was believed that there was superposed beam structure in basic roof over room-and-pillar gob.Theoretical model of supporting intensity was set up .Combining with it , rational supporting intensity of 1603 mining face, Kaida Colliery was determined with numerical simulation .Mining practice proved the rationality of this method.

关 键 词：房柱式采空区 长壁开采 支护强度 顶板结构 

分 类 号：TD326[矿业工程—矿井建设]