2011年8月6日14时，临近黄河的韩城禹昌煤矿在11#煤层回采过程中发生底板奥灰水突水，突水通过相邻煤矿采空区，并与8月7日零时5分许冲跨桑树坪煤矿北二车场绕道封闭墙进入斜井280m大巷，很快淹没整个大巷系统造成斜井整体淹井事故。在进行了井上、下水文地质调查、物探、钻探探查和示踪剂测试、水质化验与综合分析研究的基础上，初步确定了突水点与过水通道的区域，结合矿井11#煤层顶、底板、奥灰岩峰峰二段水文地质条件特征，采取了骨料灌注沉积法和松散体注浆加固法，成功隔离了两个矿井之间的水力联系。经过单位吸水率、追排水量、水位变化、残余出水量检验，达到了预期目的，实现了隐蔽突水点及过水通道快速封堵，为矿井全面恢复生产提供了重要保障。%On 14:00 August 6, 2011, the Yuchang coalmine, Hancheng near the Yellow River happened floor Ordovician limestone wa-ter bursting during the coal No.11 winning. The water bursting passing through neighboring coalmine gob and washed away N2 pitbot-tom of the Sangshuping coalmine by pass blockade wall entered into incline 280m level main roadway about 00:05 August 7, quickly drowned the entire main roadway system causing the whole incline submerged. Based on surface and underground hydrogeological in-vestigation, geophysical prospecting, drilling and tracer detection, water quality testing and comprehensive analysis, initially identified water bursting point and water channel limits;combined with hydrogeological condition characteristics of coal No. 11 roof and floor, Or-dovician Fengfeng Formation second member, using aggregate packing deposition and loose material grouting consolidation, successful-ly isolated hydraulic connection between the two coalmines. Through unit absorption rate, drainage volume, water level variation and re-sidual water charge inspection have reached the desired effect, realized hidden water bursting point and water channel instant sealing and provided principal guarantee for coalmine to resume full production.
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