煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
4期
108-111
,共4页
房柱式采空区%长壁开采%支护强度%顶板结构
房柱式採空區%長壁開採%支護彊度%頂闆結構
방주식채공구%장벽개채%지호강도%정판결구
room-and-pillar gob%long-wall mining%supporting intensity%roof structure
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。
分析瞭房柱採空區下長壁開採頂闆結構，認為房柱式採空區上部覆巖層基本頂在一定的採高範圍內存在“疊閤樑”結構，建立瞭支護彊度理論分析模型，與數值結閤進一步確定瞭鄂爾多斯凱達煤礦1603中房柱式採空下長壁綜採工作麵閤理支護彊度，開採實踐驗證瞭該方法的閤理性。
분석료방주채공구하장벽개채정판결구，인위방주식채공구상부복암층기본정재일정적채고범위내존재“첩합량”결구，건립료지호강도이론분석모형，여수치결합진일보학정료악이다사개체매광1603중방주식채공하장벽종채공작면합리지호강도，개채실천험증료해방법적합이성。
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.
