特大型采空区围岩意外垮落冲击波分析  

Analysis on blast wave induced by surrounding rock falling in accident of extremely large mine-out area

作　　者：陈赞成[1] 余斌[1] 刘建东[1] 胡建军[1] 

机构地区：[1]北京矿冶研究总院,北京100160

出　　处：《有色金属（矿山部分）》2012年第6期27-30,共4页NONFERROUS METALS(Mining Section）

摘　　要：根据铜兴公司南六号采空区滑坡体现状,建立侧移式瞬间挤压、侧翻式瞬间挤压、大面积逐渐散落三种不同的模型,计算在不同模型下的冒落体冲击波的压力和风速。通过分析冲击波在巷道中的衰减,确定滑坡体垮落时冲击波的波及范围。利用垫层消波的经验公式,对采空区底部安全垫层厚度进行校验。According to the present situation of landslide in south No. 6 mine--out areas of Tongxing Company, three different models of extrusion instantly of lateral type, extrusion instantly of side tumbling type, scattered gradually in large area are built, and the pressure and wind speed of shock wave in different models are calculated. In order to confirm the scope affected by blast wave when landslide falling, blast wave＇s attenuation in roadway is calculated. Thickness of ore cushion in bottom of mine-out areas is checked out by use experience formula of wave attenuation by ore cushion.

关 键 词：特大空区 空气冲击波 垫层厚度 

分 类 号：TD324[矿业工程—矿井建设]