摘要
文中根据龙口市洼东煤矿软岩的地质采矿条件,建立了岩体蠕变的粘弹性力学模型,确立了其蠕变参数,利用ANSYS的三维立体模型对同一工作面条带开采不同采留宽度条件下的地表下沉和力学效应进行了数值模拟计算,分析了煤柱及其围岩的稳定性和安全性,提出了软岩矿区建筑物下条带开采的合理采留宽度,从而为软岩矿区建筑物下的特殊开采提供了参考依据。
In the paper,the visco-elastic mechanical model of rock creep is established based on the geological mining condition of soft rock at Wadong Coal Mine in Longkou City,Shandong Province, and corresponding creep parameters are also determined.What's more,numerical simulation computation is made with the ANSYS 3D model to the surface subsidence and mechanical effect under the condition that the strip mining with different pillar width of mining is undertaken on the same working face,and stability and safety of the pillar and surrounding rock are also analyzed.Finally the rational pillar width of strip mining under buildings in the soft rock mining area is given,which provides reference basis for the special mining under buildings in the soft rock mining area.
出处
《矿山测量》
2005年第4期60-62,共3页
Mine Surveying
