煤炭技术
煤炭技術
매탄기술
Coal Technology
2015年
11期
65-67
,共3页
浅埋煤层%压架机理%煤柱%顶板结构
淺埋煤層%壓架機理%煤柱%頂闆結構
천매매층%압가궤리%매주%정판결구
shallow depth seam%mechanism of support crushing%coal pillar%roof structure
依据对浅埋煤层开采下压架机理已有的认识，对大柳塔煤矿22103综采面旺采区下开采发生的3次较大范围来压事故原因进行分析，并提出相应的防治对策。结果表明：旺采区上部覆岩在一定的采高范围内存在叠合梁结构，上位悬臂梁与下位悬臂梁失稳的不同周期性是长壁工作面支架失稳的主要原因之一。
依據對淺埋煤層開採下壓架機理已有的認識，對大柳塔煤礦22103綜採麵旺採區下開採髮生的3次較大範圍來壓事故原因進行分析，併提齣相應的防治對策。結果錶明：旺採區上部覆巖在一定的採高範圍內存在疊閤樑結構，上位懸臂樑與下位懸臂樑失穩的不同週期性是長壁工作麵支架失穩的主要原因之一。
의거대천매매층개채하압가궤리이유적인식，대대류탑매광22103종채면왕채구하개채발생적3차교대범위래압사고원인진행분석，병제출상응적방치대책。결과표명：왕채구상부복암재일정적채고범위내존재첩합량결구，상위현비량여하위현비량실은적불동주기성시장벽공작면지가실은적주요원인지일。
According to the understanding of the mechanism of support crushing of shallow depth seam,the cause of the three ground pressure accident occurring in a wide range in No.22103 fully mechanized coal mining face of Daliuta coal mine was analyzed. The relative prevention and control measures were provided. The results showed that upper overburden on the wongawilli mining goaf have composite beam structure in certain caving height range ,different instability periodicity of upper fixed beam and under cantilever beam is one of the main causes of support buckling in long-wall working face.
