The water-soluble mining is often accompanied by ground subsidence, which could result in the severity of ground subsidence disasters. The roof of the salt-bearing strata in the Longgui salt rock mining area is close to the third aquifer, which is mostly composed of muddy conglomerate and other porous rocks with large porosity and permeability. The water-soluble mining for many years has caused serious ground subsidence in the mining area, and there is a tendency to accelerate subsidence. Taking Longgui salt rock mine as a case, the mining subsidence mechanism was analyzed and discussed through the water dissolution simulation test. This study is of great significance to the prevention and control of ground subsidence disasters in Longgui salt rock mine, and also has certain reference value for other similar mining areas.
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机译：水溶性采矿通常伴随着地下沉降，这可能导致地下沉陷灾害的严重程度。 LongGui盐岩矿区的含盐地层的屋顶接近第三含水层，主要由泥石砾和其他多孔岩石组成，具有较大的孔隙率和渗透性。多年来的水溶性采矿使矿区造成严重的地面沉降，并且倾向于加速沉降。采用Longgui Salt Rock Mine作为一种情况，通过水溶解模拟试验分析和讨论了采矿沉降机制。本研究对龙桂盐岩石矿区的地面沉陷灾害预防和控制具有重要意义，并且对其他类似采矿区的参考价值也有一定的参考价值。
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