深孔强松动预裂爆破在深路堑开挖中的应用

Application of loose pre-shearing blasting technique about deep hole in the construction of deep road chasm

在高速公路石质深路堑施工中,采用深孔强松动预裂控制爆破施工技术,能有效地控制飞石、振动效应和冲击波,确保爆破区周围环境安全,且爆破“块度”粒径适中,坡面平整、圆顺、整体稳定性好,具有显著的经济效益。

In the construction of deep road chasm of freeway, adopting the loose pre-shearing blasting technique about deep hole can effectively control slungshot, vibrancy effect and bow wave, insure the environment safety around the blasting area, and the diameter of the blasting block is proper, the slope is unknit ting and round, the whole stability of the slope is good. So adopting this technique has remarkable economic benefit.