圆柱状直线掏槽与空气间隔装药相结合光面爆破施工工法  

Smooth blasting construction method combining cylindrical linear cut and air space charge

作　　者：许霄 陈飞 XU Xiao;CHEN Fei(Hubei General Water Conservancy and Hydropower Construction Co.,Ltd.,Wuhan 430000,China)

机构地区：[1]湖北水总水利水电建设股份有限公司,湖北武汉430000

出　　处：《水利建设与管理》2018年第12期62-66,共5页Water Conservancy Construction and Management

摘　　要：中小型水利水电工程中隧洞尺寸较小,常用的八字掏槽爆破方法存在不足。为提高小型隧洞开挖的钻孔利用率,降低施工成本,通过现场实验,总结出圆柱状直线掏槽与空气间隔装药相结合的光面爆破施工方法,可有效解决小型隧洞钻孔利用率低、开挖成本高的问题,社会效益和经济效益良好。The tunnel size of medium and small water conservancy and hydropower projects is small,and the commonly used8-character cut blastingmethodis insufficient. The smooth blasting construction methodcombining cylindrical linear cut and air space chargeis concluded through field experiment in order to improve theboreholeutilization rate of small tunnel excavationand reduce the construction cost. The problems of low utilization rate in small tunnel borehole and high excavation costcan be effectively solved,and the social and economic benefits are excellent.

关 键 词：小型隧洞 光面爆破 直线掏槽 间隔装药 

分 类 号：TV542[水利工程—水利水电工程]