房柱采空区下长壁开采工作面支架支护强度研究

摘要

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 rationali-ty of this method.%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。