深埋厚煤层充填开采工作面覆岩活动规律研究OA
Study on the overburden movement law in backfill mining face of deep and thick coal seam
为解决邢东矿区"三下"开采背景下的地表沉降问题,以主采煤层厚度大、埋藏深的邢东矿为工程应用背景,采用理论分析、计算机数值分析和现场实测等多种方法和手段,对深埋厚煤层充填开采工作面覆岩活动规律进行了深入系统的全面研究.通过理论计算得出了基本顶及以上岩层不发生断裂的临界充填高度,利用数值模拟得出了工作面进行开采过程中的顶板岩层移动及破坏规律,最后实测工作面上方的最大下沉量,表明地面变形得到了有效控制.
In order to solve the problem of surface subsidence under the background of"under three"mining in Xingdong mining area,Xingdong Mine with large main coal seam thickness and deep burial was taken as the engineering application background.By using various methods and means such as theoretical analysis,computer numerical analysis and field measurement,the overburden movement law of deep and thick coal seam backfill mining face was deeply and systematically studied.Through theoretical calculation,the critical backfill height of the roof strata above the roof without fracture was obtained,and the movement and failure law of the roof strata in the mining process of the working face was obtained by numerical simulation.Finally,the maximum subsidence above the working face was measured,indicated that the ground deformation could be effectively controlled.
牛小森
冀中能源股份有限公司邢东矿,河北邢台 054000
矿业与冶金
深埋厚煤层充填开采覆岩活动沉降控制三下开采
deep and thick coal seambackfill miningoverburden movementsubsidence controlunder three mining
《煤炭与化工》 2026 (3)
22-26,5
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