煤层带压开采可行性分析

Analysis on feasibility of coal seam mining with pressure

为了分析煤矿带压开采的可行性,对山西某矿3号煤层底板强含水层、底板隔水层进行分析,对底板岩体力学性质及底板保护层阻水性能进行研究,得出了底板隔水层承受的水压及变化规律。结果表明,K_2灰岩水和奥灰水在隔水层较完整地段,对3号煤层带压开采的安全性不会构成威胁,可以实现安全采煤。

In order to analyze on the feasibility of coal seam mining with pressure,No.3 coal seam floor aquifer,water-resisting floor of some mine in Shanxi Province were analyzed,the mechanical properties of the rock mass and the resistance of the protection layer of the floor were studied to get the changing law of floor resisting water layer with water pressure.The result showed that No.3 coal seam mining with pressure is safe in completed water resisting layer of K2 limestone water and Ordovician water.