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yi ci bao yu yan jing shi gu de fen xi
Author(s): 
Pages: 45-46+54
Year: Issue:  9
Journal: Safety in Coal Mines

Keyword:  煤矿矿区运输水平采区暴雨淹井巷道间接损失直接经济损失山洪暴发天堂塌陷区;
Abstract: <正> 前言1987年5月21日早晨7点45分,水东煤矿矿区内突然下了一场暴雨,暴雨持续一个多小时,引起山洪暴发,山洪从该矿天堂坪井北三采区地表塌陷洞直接灌入井下,造成天堂坪井+175m、+250m 两个运输水平被淹,北三采区全部巷道被摧毁淤塞,直接经济损失33.5万元,间接损失
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