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针对如何确定固庄矿积水采空区下方巷道布置安全距离难题,分析积水采空区下方巷道布置影响因素,建立了采空区下方巷道布置模型。模型自上而下分为3个部分,即底板破坏区、安全隔水区和巷道围岩破坏区。运用土力学、弹塑性力学和矿山压力相关理论,确定了采空区下方巷道留设布置的理论方法;运用该法对该矿实例进行了应用计算和数值模拟,两者相互验证。
Aiming at the problem of how to determine the safety distance of the roadway under the gob of gulzhuang mine, the influencing factors of the roadway layout under the gob of water are analyzed, and the roadway layout model under the gob area is established. The model is divided into three parts from the top to the bottom, namely the bottom plate destruction area, the safety water separation area and the roadway surrounding rock destruction area. The theories and methods of soil mechanics, elasto-plastic mechanics and mine pressure are applied to determine the theoretical method of the left-behind layout of the roadway under the goaf. The method is used to calculate and simulate the mine’s application.