CAJ | 학술논문

根据鹤岗富力矿合中位厚夹矸煤层地质条件及煤的赋存状况，应用RFPA^2D数值模拟软件分别对-450南18-2工作面含0．5、1．0、1．5m厚夹矸开采煤体的运移情况进行数值模拟。结果表明，采动过程中，上部顶煤垂直方向的位移量均大于下部，而下部顶煤始动点距工作面的距离均大于上部。夹矸层强度与煤层强度既定情况下，工作面顶煤的运移规律及破碎程度均与含夹矸层的厚度相关。含1．0m厚夹矸顶煤总位移量大于含0．5、1．5m厚夹矸顶煤总位移量；合1．0m厚夹矸顸煤比含0．5、1．5m厚夹砰顶煤破碎充分。该研究为含夹矸条件下厚煤层综放开采冒放工艺的确定提供了依据。
근거학강부력광합중위후협안매층지질조건급매적부존상황，응용RFPA^2D수치모의연건분별대-450남18-2공작면함0．5、1．0、1．5m후협안개채매체적운이정황진행수치모의。결과표명，채동과정중，상부정매수직방향적위이량균대우하부，이하부정매시동점거공작면적거리균대우상부。협안층강도여매층강도기정정황하，공작면정매적운이규률급파쇄정도균여함협안층적후도상관。함1．0m후협안정매총위이량대우함0．5、1．5m후협안정매총위이량；합1．0m후협안한매비함0．5、1．5m후협팽정매파쇄충분。해연구위함협안조건하후매층종방개채모방공예적학정제공료의거。
This paper builds on thick coal seam of geological conditions and occurrence status of Fuli coal mine in Hegang and describes the use of RFPA^2D numerical simulation software to simulate the mov- ing regularity of -450 south 18 -2 working face, with different gangue thickness 0.5, 1.0, 1.5 m re- spectively. The results show that the upper top coal has larger vertical displacement than the lower in mining process, and the starting point of the lower top coal is more distant than that of the upper top coal from working face. With certain strength of gangue and coal seam, top coal in the working face shows the moving regularity and the degree of crushing, depending on gangue thickness, the top coal with 1.0 m gangue thickness gives a greater displacement and better crushing than that with 0. 5 m or 1.5 m. The re- search could provide a better basis for the caving process of thick coal seam with gangue in fully mecha- nized top coal caving.