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在煤矿建设和生产过程中,对各种类型的水源突然涌入或溃入采掘工作面的过程称为突水。当突水量大于矿井正常涌水量,且矿井排水能力不足或防水设施失效时,就会发生淹井事故。据统计,全国统配煤矿中有222处矿井受水害危胁,占部属煤矿核定生产能力的30%。截至1987年底,共发生淹井、淹水平事故200余起,
In the construction and production of coal mines, the sudden influx or collapse of various types of water sources into the mining face is called inrush. When the water inrush is greater than normal mine water inflow, and the drainage capacity of mine inadequate or waterproof facilities failure, there will be flooded wells accident. According to statistics, there are 222 mines in the national coal mine that are subject to water hazards, accounting for 30% of the approved production capacity of subordinate coal mines. As of the end of 1987, a total of more than 200 submerged wells flooded the accident level,