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基于淮南某矿上提工作面老顶岩层直接赋存煤层上方的地质开采条件,建立了四含水条件下老顶岩层破断与支架相互作用模型并进行了压架分析;采用数值计算方法给出了综采面回采过程中支架受载增阻及下缩曲线。
Based on the geological mining conditions directly above coal seams in the old roof strata of a raised mine in Huainan coal mine, an interaction model between the roof fractures and the scaffold under the condition of four water-containing was established and the pressure racking analysis was carried out. The numerical calculation method was given Fully mechanized coal mining face during the process of loading resistance reduction and reduction curve.