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一、两起事故情况的简要介绍1、裴沟煤矿4月7日的冒顶事故1987年4月7日13时25分,裴沟矿16采区160011回采工作面发生重大冒顶事故,死亡8人。裴沟矿设计能力为120万吨/年,现采煤层为二迭系二煤,煤层厚度平均6～8m,煤层顶底板为松软的泥岩及泥质页岩,开拓方式为立井单水平上山开拓。160011工作面走向长度120m,倾斜长度45m,煤层厚度14.5m,倾角12度。由于工作面中间有小窑巷道,为了避免分层开采巷道登空的不利影响,决定把工作面巷道布置在煤层
First, a brief description of two accident situations 1, Pei Gou mine April 7, the top of the accident April 13, 1987 at 13:25, Pei Gou 16 mining area 160011 mining face major caving accident, the death of 8 people . The designed capacity of Peigou Mine is 1.2 million tons per year. The existing coal seam is Permian II coal seam, the average coal seam thickness is 6 ~ 8m. The top and bottom of coal seam are soft mudstone and shale shale. open up. 160011 Face to the length of 120m, length of 45m inclined, seam thickness 14.5m, dip 12 degrees. Due to the small kiln laneways in the middle of the working face, in order to avoid the unfavorable influence of stratified mining laneways, it is decided to arrange the working face laneways in the coal seam