【摘要】 利用有限元建立数值分析模型,通过对充填采矿法采矿时的矿体围岩塑性区动态发展变化过程的模拟,预测了地表的潜在变形塌陷以及需要进行重点安全监测的隐患区域和危险范围,为矿山地下采空区分层开采和充填方案的确定提供参考。更多还原

【Abstract】 In the case of filling method used for mining,the change of plastic-zone distribution in surrounding rock of ore body is simulated by using finite element numerical analysis method.With the simulation result,potential surface subsidence and potential unsafe areas are forecasted,which provides reference for the determination of slice mining and filling method used in underground mined-out area.更多还原