【摘要】 通过综合分析高头窑煤矿河流下开采的具体条件,对该矿浅埋煤层河流下开采覆岩的破坏规律及冒落带和裂隙带的高度进行了数值模拟计算,得出了在不同开采厚度的情况下,导水裂隙带的发育高度和范围,对河流下煤矿开采围岩控制的安全性提供了理论依据。更多还原

【Abstract】 By the analysis on the mining condition under river in Gaotouyao mine,the simulation and calculation of overburden failures and heights of caving and fracture zones are conducted.The growing heights and scopes under different mining thicknesses are achieved,which provides a theoretical proof for mining security under river.更多还原