煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
1期
83-86
,共4页
浅埋深煤层%坚硬顶板%深孔爆破%放顶高度%初次来压步距
淺埋深煤層%堅硬頂闆%深孔爆破%放頂高度%初次來壓步距
천매심매층%견경정판%심공폭파%방정고도%초차래압보거
shallow buried coal-seam%hard roof%deep-hole blasting%roof caving height%first weighting pace
针对神东浅埋坚硬顶板煤层矿区，工作面初采时顶板来压强烈以及顶板突然大面积冒落引发飓风问题，分析了浅埋煤层初采期顶板致灾原因，并通过构建浅埋煤层顶板大面积悬顶力学结构模型，得出浅埋深煤层顶板是否需要强制放顶的判据，提出强制放顶合理高度的确定方法，最后通过现场实践证明，根据该方法提出的浅埋煤层坚硬顶板治理方案切实可行，取得了良好的效果。
針對神東淺埋堅硬頂闆煤層礦區，工作麵初採時頂闆來壓彊烈以及頂闆突然大麵積冒落引髮颶風問題，分析瞭淺埋煤層初採期頂闆緻災原因，併通過構建淺埋煤層頂闆大麵積懸頂力學結構模型，得齣淺埋深煤層頂闆是否需要彊製放頂的判據，提齣彊製放頂閤理高度的確定方法，最後通過現場實踐證明，根據該方法提齣的淺埋煤層堅硬頂闆治理方案切實可行，取得瞭良好的效果。
침대신동천매견경정판매층광구，공작면초채시정판래압강렬이급정판돌연대면적모락인발구풍문제，분석료천매매층초채기정판치재원인，병통과구건천매매층정판대면적현정역학결구모형，득출천매심매층정판시부수요강제방정적판거，제출강제방정합리고도적학정방법，최후통과현장실천증명，근거해방법제출적천매매층견경정판치리방안절실가행，취득료량호적효과。
In Shendong shallow-buried mining area , hard roof weighting is very strong and roof extensive collapse can result in typhoon in initial mining phrase.This paper analyzed roof disaster reason of shallow buried coal-seam in initial mining phrase , and obtained whether the roof should be forced caved by constructing hanging roof mechanical model for shallow buried coal -seam.The method of de-termining rational roof caving height was put forward.Field practice showed that the roof control project by this method was feasible and application effect was good.
