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地下采空区围岩破坏发展的有限元数值分析
Numerical Analysis on Surrounding Rock Failure of Underground Mined-Out Area
【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。
【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.
【关键词】 地下采空区;
分层充填;
数值分析;
【Key words】 underground mined-out area; slicing and filling; numerical analysis;
【Key words】 underground mined-out area; slicing and filling; numerical analysis;
- 【文献出处】 有色冶金设计与研究 ,Nonferrous Metals Engineering & Research , 编辑部邮箱 ,2010年05期
- 【分类号】TD325.3
- 【被引频次】9
- 【下载频次】84