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1984年6月2日,开滦范各庄矿2171工作面发生了一场世界采矿史上罕见的奥陶纪灰岩(以下简称奥灰岩)岩溶陷落柱特大突水灾害。根据淹没体积测算。突水高峰期平均涌水量为2053米~3/分。范矿淹没后,6日矿井水突破边界煤柱,溃决流入相邻的吕家坨矿,10日吕矿被淹没,12日与其相邻的林西矿发现边界煤柱地段渗水,渗水量随吕矿水位上升而增大(达16米~3/分)。为控制灾情发展,决定采用“排,截、堵”相结合的综
June 2, 1984, Kailuan Fangezhuang 2171 working face occurred in a world history of mining rare Ordovician limestone (hereinafter referred to as the limestone) karst collapse column sudden water disaster. According to submergence volume measurement. The average influx of water in rush hour is 2053 m ~ 3 / min. After the van mine flooded, on the 6th, the mine water broke through the boundary pillars and collapsed into the adjacent Lujitao Mine. On the 10th, the Lulu Mine was inundated. On the 12th, the neighboring Linxi Mine discovered the seepage and seepage of the coal pillar along the border Lv mine water level increased and increased (up to 16 m ~ 3 / min). In order to control the development of the disaster, it is decided to adopt the combination of “row, block and block”