双含水层长壁开采顶板透水的数值模拟

Numerical Simulation of Roof Water for Double Aquifer Longwall Mining

为了研究煤矿顶板透水机理,揭示顶板透水规律,以便为矿井开采、防治水技术措施提供设计依据,根据黄陵矿区长壁综放工作面开采技术条件和岩石力学性能等参数,建立力学模型,运用岩石破裂过程分析软件RFPA2D,对自开切眼至充分采动全过程覆岩随工作面推进时的变形、裂隙带发育、冒落情况进行了数值模拟,模拟过程中的透水量和实际检测到的透水量相吻合。

In order to study the mechanism of coal mine roof water,reveal the laws of roof water,for mining,water control design based on technical measures, according to Huangling mining longwall caving face of parameters, such as technology conditions and mechanical properties of rocks, establish mechanical model. The use of rock failure process analysis software RFPA2D, since the opening cut on the eye to fully review the whole process of mining rock face forward with the deformation, fracture zone development, to take down the numerical simulation of the situation,simulation of water in the process of testing coincides with the actual volume of water.