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针对恒源煤矿为解决太灰含水层高压水害,需要对其进行疏干降压从而导致陷落柱有活化导水可能性的问题,运用数值模拟软件Comsol Multiphysics模拟渗流作用下特征离子Ca2+、HCO3-在距离陷落柱中心一定范围内浓度的变化趋势,根据太灰水长期抽水试验和观测孔水位变化数据确定水位异常值为-5~+1 m/月。结合电阻率变化趋势,建立完整的监测预警系统,以保证矿井安全生产。
In order to solve the problem of high water pressure hazard in Taiyuan aquifer, Hengyuan Coal Mine needs to be dehydrated and depressurized so as to make the sinking column have the possibility of activated water diversion. The numerical simulation software Comsol Multiphysics is used to simulate the characteristics of Ca2 +, HCO3- According to the change trend of the concentration within a certain range from the center of the collapse column, the water level anomaly value is -5 ~ +1 m / month according to the long-term pumping test of too-grained water and the observation hole water level variation data. Combined with the change trend of resistivity, a complete monitoring and early warning system is established to ensure mine safety production.