江西煤炭科技
江西煤炭科技
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JIANGXI COAL SCIENCE & TECHNOLOGY
2014年
2期
130-132
,共3页
综放开采%矿压显现%数值模拟%顶板
綜放開採%礦壓顯現%數值模擬%頂闆
종방개채%광압현현%수치모의%정판
fully-mechanized caving mining%ground behavior%numerical simulation%roof
以夏店煤矿3111综采工作面为研究背景，采用数值模拟手段对工作面矿压规律进行研究，得出坚硬顶板条件下采场上覆岩层的运动规律、采场矿压的基本参数等，工作面推进到50 m时，岩层整体的破坏范围也很小，顶板不会整体垮落；工作面推进到30 m时，细砂岩岩层与工作面相交处破坏的区域基本上贯穿了整个细砂岩层，工作面初次来压的步距大致为30 m左右。
以夏店煤礦3111綜採工作麵為研究揹景，採用數值模擬手段對工作麵礦壓規律進行研究，得齣堅硬頂闆條件下採場上覆巖層的運動規律、採場礦壓的基本參數等，工作麵推進到50 m時，巖層整體的破壞範圍也很小，頂闆不會整體垮落；工作麵推進到30 m時，細砂巖巖層與工作麵相交處破壞的區域基本上貫穿瞭整箇細砂巖層，工作麵初次來壓的步距大緻為30 m左右。
이하점매광3111종채공작면위연구배경，채용수치모의수단대공작면광압규률진행연구，득출견경정판조건하채장상복암층적운동규률、채장광압적기본삼수등，공작면추진도50 m시，암층정체적파배범위야흔소，정판불회정체과락；공작면추진도30 m시，세사암암층여공작면상교처파배적구역기본상관천료정개세사암층，공작면초차래압적보거대치위30 m좌우。
Taking 3111 fully mechanized coal face ,Xiadian Colliery as research background ,the paper probes in-to strata behavior regularity at work face by using numerical simulation method ,obtains motion law of overlying strata under hard roof condition and basic parameter of stope mine pressure .Studies have shown that the whole roof will not collapse and the overall extent damage of rock is very small when the face advances to 50m ,region damage of fine sandstone rock and face penetrates the whole fine sandstone rock when the face advances to 30m , and the step of initial pressure at face is approximately 30m .
