光面爆破是一项有效控制岩体开挖轮廓,减少超挖欠挖的爆破技术。与传统洞式爆破相比,光面爆破的爆破方式通过对隧道掘进面的科学布孔和爆破,降低围岩的扰动,减少超欠挖量、炸药量和支护混凝土用量,爆破后岩面平整,岩碴块小且均匀,利于装运出碴,节约工程成本。 Smooth blasting is a blasting technique that effectively controls the excavation profile of rock mass and reduces overbreak and underbreak. Compared with the traditional tunnel blasting, the blasting method of smooth blasting reduces the disturbance of surrounding rock through the scientific drilling and blasting of tunnel boring surface, reduces the amount of overdue excavation, the amount of explosives and the amount of supporting concrete, Flat, small ballast block and uniform, which will help shipping ballast, saving construction costs.