陕西煤炭
陝西煤炭
협서매탄
SHAANXI COAL
2011年
4期
76-78
,共3页
浅埋煤层%大面积垮落%顶板分级%灾变预防
淺埋煤層%大麵積垮落%頂闆分級%災變預防
천매매층%대면적과락%정판분급%재변예방
shallow seam%large area caving%roof classification%disaster prevention
对南梁煤矿浅埋单体长壁工作面的顶板进行了分级,分析了目前工作面的支护状况,提出了通过强制放顶,将顶板初次来压步距及初次来压和周期来压的台阶下沉控制在允许范围内的预防大面积垮落灾变的措施,为预防开采过程中发生大面积来压和实现浅埋煤层单体工作面连续推进具有重要意义。
對南樑煤礦淺埋單體長壁工作麵的頂闆進行瞭分級,分析瞭目前工作麵的支護狀況,提齣瞭通過彊製放頂,將頂闆初次來壓步距及初次來壓和週期來壓的檯階下沉控製在允許範圍內的預防大麵積垮落災變的措施,為預防開採過程中髮生大麵積來壓和實現淺埋煤層單體工作麵連續推進具有重要意義。
대남량매광천매단체장벽공작면적정판진행료분급,분석료목전공작면적지호상황,제출료통과강제방정,장정판초차래압보거급초차래압화주기래압적태계하침공제재윤허범위내적예방대면적과락재변적조시,위예방개채과정중발생대면적래압화실현천매매층단체공작면련속추진구유중요의의。
Based on the roof classification of individual hydraulic prop longwall face in Nanliang mine,the paper analyzed the support condition of the mining face and proposed the measures of forced caving method which can prevent the disaster of large area caving.The method is important to prevent roof disaster and achieve the mining face advancing continuity in individual hydraulic prop working face in shallow seam.
