大面积楔形掏槽爆破技术在公路隧道施工中的应用

Application of Large-area Wedge Cutting Blasting Technology in Construction of Highway Tunnels

主要介绍陕西秦岭终南山特长公路隧道施工中,为改善爆破效果,加快隧道掘进速度,在中、硬岩爆破实践中,在传统的楔形掏槽技术的基础上,成功地采用大面积深孔楔形掏槽技术,达到了很好的效果。

In order to improve the blasting effect and driving speed during the construction of Zhongnanshan super-long highway tunnel through Qinling mountain in Shanxi, China, large-area deep-hole wedge cutting blasting technology is used on basis of the traditional wedge cutting blasting technology and satisfactory results are achieved. The article presents the large-area deep-hole wedge cutting blasting technology applied in the construction of the highway tunnel.