关键词: 断裂构造, 充填开采, 三倍基准, 采充工艺, 接顶工艺

Abstract: The layout of the first level mining in Shaliang Coal Mine was significantly changed by the influence of the two significant faults, F1 and F2, and their secondary faults in the minefield, resulting in a significant reduction in the layout area of the regular fully mechanized mining face. In order to optimize mine mining layout and improve coal seam recovery rate, the paper proposes to arrange a short-wall or special-shaped strip filling mining face in the multi-fault cutting area of the mine and replace the coal pillar with multi-cycle filling mining. The research shows that the test C135206 working face of Shaliang Coal Mine is in the base-load ratio JZ < 0.8 and base-mining ratio JC < 9, and the strip mining width is in the limit span range determined by the direct roof breaking criterion. Using the triple reference process type parameters of ' mining 6.6 and leaving 19.8 m ' is appropriate based on a continuous mining machine. The triple reference type adopts four-wheel sequential mining and filling cycle. The mining and filling process is suitable for continuous mining and filling of single-wing single-working face, large-cycle arrangement of the multi-working face in two wings of the main roadway and complete separation of mining. The roof-contacting method of laying multi-channel grouting and gas pipeline on the roof of the working face strip roadway can realize the full roof-contacting of the filling body, and the high-efficiency anti-blocking at both ends of the strip roadway can be realized by using the baffle ( wall ). The research provides a new idea for optimizing the layout of horizontal mining in Shaliang Coal Mine and effectively improving the recovery rate of the mine.