综放工作面停采煤柱留设研究

Study on Coal Pillar Remaining in Fully-mechanized Top-coal Caving Face

为探究中深度埋深综放工作面煤柱留设位置的合理性,同时兼顾煤炭资源高效回收及盘区大巷的稳定性。文章以晋能控股煤业集团某矿综放工作面为工程背景,通过超前支承压力极限平衡理论计算,结合综放工作面矿压实测数据分析,掌握停采煤柱位置的合理范围,根据工作面设备型号制定停采方案,最终确定停采煤柱的宽度为73.7 m。

In order to explore the rationality of the position of the coal pillar in the deep-buried fully mechanized top-coal caving face,and to give consideration to the high-efficiency recovery of coal resources and the stability of the main roadway in the panel area.Based on the engineering background of a fully mechanized top-coal caving face in Jinneng holding coal group,this paper,through the theoretical calculation of the limit equilibrium of the pressure of the leading support and the analysis of the measured data of the ground pressure in the fully mechanized top-coal caving face,grasps the reasonable range of the position of the stopped-mining coal pillar,according to the type of working face equipment,the stoping plan is made,and the width of stoping coal pillar is 73.7 m.