楔形拉槽法在高分段采场中的应用  

APPLICATION OF WEDGE CUTTING IN HIGH LEVEL STOPES

作　　者：明士祥[1,2] 宋卫东[1,2] 董福荣 

机构地区：[1]北京科技大学 [2]小官庄铁矿

出　　处：《工程爆破》1998年第3期50-53,共4页Engineering Blasting

摘　　要：切割槽的形成是无底柱分段崩落法关键开采工序之一，但施工难度大、安全性差、质量不易保证。本文介绍的有切巷、无切井的深孔爆破楔形切槽法是一种施工方便、作业安全、成本低、效率高的拉槽方法，应用于软破矿体中的高分段采场具有明显的优点。The cut forming is one of the main step of Pillar free sublevel caving method It is very difficult for this mining method in construction,poorer safety and difficult for quality to be guarantee The wedge cutting longhole blasting with cut level and without cut raise is a mining method easy in construction,safe in operation,low cost,high efficiency It has remarkable advantages for application in high level stopes

关 键 词：切割工程 深孔爆破 地下开采 楔形拉槽法 巷道 

分 类 号：TD235.33[矿业工程—矿井建设] TD263.3