标准药卷光面爆破在隧洞掘进中的应用

Application of Standard Cartridge Smooth Blasting in Tunnel Excavation

在深圳市东部供水工程西河潭隧洞施工中，应用３２普通药卷代替小直径光爆药卷，通过调整装药结构，在Ⅱ至Ⅴ类围岩光面爆破中，取得了良好的爆破效果。

In the course of Xihetan tunnelling in Shenzhen city water supply project, 32 ordinary cartridge was used to replace small-diameter smooth-blasting cartridge, a satistactory blasting effectiveness was achieved in the smooth blasting of Ⅱ Ⅴ classes wallrock through adjusting the charging structure.