光面爆破在薄层岩石中的应用

Application of smooth blasting in thin rocks

针对太兴线部分隧道岩性特点,通过对薄层岩性特点分析,介绍了有效控制薄层围岩超挖的光面爆破施工技术,实践证明:采用光面爆破能有效控制周边眼炸药的爆破作用,确保施工安全,减小超、欠挖,加快施工进度,降低工程成本。

In light of characteristics of partial tunnel rocks on Tai-Xing line, by analyzing features of thin rocks, this paper introduces smooth blasting construction technology of effectively controlling thin rocks excavation. Practice proves that ： smooth blasting technology can effectively control blasting effect of surrounding explosives, ensure construction safety, reduce over break, speed up construction schedule, and low down engineering cost.