黑山露天煤矿非构造裂隙岩体爆破网路设计与优化  

Design and optimization of fractured rock mass blasting network structure of non black open pit coal mine

作　　者：陈亚军[1] 常治国[1] 毛金峰[1] 王金军 

机构地区：[1]新疆工程学院,新疆乌鲁木齐830091 [2]新疆黑山露天煤矿,新疆米泉831400

出　　处：《中国矿业》2015年第3期116-118,共3页China Mining Magazine

基　　金：新疆维吾尔自治区科技支撑计划项目资助(编号:201333111)

摘　　要：在长期干旱、多风、少雨气候条件作用下，岩体结构会发生变化，岩体内会有大量的节理和裂隙，爆破作业时，岩石大块率高，爆堆不规整，飞石伤人事故经常发生。在爆破试验基础上，设计采用不对称的”V”型斜线逐孔毫秒微差起爆网路，大区深孔爆破，可以增加自由面，环向拉应力和径向拉应力作用效果明显。本文通过黑山露天煤矿非构造裂隙爆破理论与实践，使岩石爆破大块率降低5％～7％，大大提高爆破效果。The structure of rock mass will change under long‐time drought ,little rain ,windy climate conditions .There will be lots of joints and cracks in rock mass ,so when blasting ,it may appear that high block rate ,blasting pile irregular ,flying wounding accidents and so on .Based on the blasting test ,the design adopts the asymmetric “V” type oblique hole to hole millisecond blasting network .The large area of deep hole blasting can increase the free surface ,and the circumferential tensile stress and radial tensile stress apparent effect . In this paper ,through the theory and practice of non constructing fracture blasting of Montenegro open pit mine , the rock blasting block rate reduced 5% ~7% ,greatly improve the blasting effect .

关 键 词：露天煤矿 非构造裂隙 爆破网路 

分 类 号：TD235.4[矿业工程—矿井建设]