Mechanism Analysis and Prevention Measures of the Ground Settlement of Salt Mines Induced by Water-Solution Mining
With the further popularization of using the water-solution method to mine salt mines in China,geo-logical disasters caused by ground subsidence have also occurred repeatedly.Due to the characteristics of the long duration,large impact scale,high destructiveness,strong suddenness,repetitive occurrence and ground brine before and after occurrence,and it is concluded that the instability of the solution cavity roof,the development of rock joint cracks or faults and the low bearing capacity of the solution cavity roof caused by goaf are the three main fac-tors of the ground subsidence of salt mines induced by water-solution mining.This article puts forward suggestions on ground subsidence control measures from three aspects:beforehand prevention,in-process control and ex-post remediation.
Salt mineWater-solution miningGround subsidenceGeological hazardPrevention in advanceControl in the processRemediation afterwards