光面爆破开挖施工技术在石质围岩隧道的应用研究

Research on the Application of Smooth Blasting Excavation Construction Technology in Stone Surrounding Rock Tunnels

石质围岩隧道施工在国防工程、道路建设、矿山项目中应用比较普遍,多需要借助爆破技术提供辅助,不同施工环境下,爆破技术的选择、应用也各有要求。本文以光面爆破开挖技术为例进行研究,介绍其原理、技术要点以及多见问题等内容,并结合张涿高速与北京市国道G109新线高速连通工程为例,对其操作措施、质量改进方式等进行探讨,为后续石质围岩隧道工程以及光面爆破开挖施工技术应用提供更多支持。

The construction of stone surrounding rock tunnels is widely used in national defense engineering,road construction,and mining projects,and often requires the assistance of blasting technology.The selection and application of blasting technology also have different requirements in different construction environments.This article takes the smooth blasting excavation technology as an example to study its principles,technical points,and common problems.Taking the Zhangzhuo Expressway and the Beijing National Highway G109 New Line Expressway Connection Project as an example,the article explores its operational measures and quality improvement methods,providing more support for the subsequent stone surrounding rock tunnel engineering and the application of smooth blasting excavation construction technology.