科技资讯
科技資訊
과기자신
SCIENCE & TECHNOLOGY INFORMATION
2012年
13期
114-115
,共2页
综放面%煤柱%侧向支承压力%应力观测
綜放麵%煤柱%側嚮支承壓力%應力觀測
종방면%매주%측향지승압력%응력관측
Fully mechanized caving face,Pillar%Lateral abutment pressure%Stress observation
为了获得回采期间厚煤层综放工作面侧向支承压力分布情况,基于回采工作面矿山压力理论,通过在回采工作面轨道顺槽外侧煤体中布置钻孔应力计,对回采期间及顶板垮落后巷帮受力进行监测,进而摸清工作面侧向支承压力的分布规律,为工作面区段煤柱留设提供依据。
為瞭穫得迴採期間厚煤層綜放工作麵側嚮支承壓力分佈情況,基于迴採工作麵礦山壓力理論,通過在迴採工作麵軌道順槽外側煤體中佈置鑽孔應力計,對迴採期間及頂闆垮落後巷幫受力進行鑑測,進而摸清工作麵側嚮支承壓力的分佈規律,為工作麵區段煤柱留設提供依據。
위료획득회채기간후매층종방공작면측향지승압력분포정황,기우회채공작면광산압력이론,통과재회채공작면궤도순조외측매체중포치찬공응력계,대회채기간급정판과락후항방수력진행감측,진이모청공작면측향지승압력적분포규률,위공작면구단매주류설제공의거。
In order to obtain the distribution measurement of lateral abutment pressure of thick seam fully mechanized caving face during mining,by layout of the drilling strain gauge in the outside of mining roadway for fully mechanized sublevel caving face,monitor the stress changing of roadway in the period of mining and after roof collapse,and then find out the distribution measurement of lateral abutment pressure,provide a basis for the section coal pillar's reserve of thick seam fully mechanized caving face