高速公路三车道隧道Ⅲ级围岩钻爆设计探究

Research on drill blast design of class Ⅲ surrounding rock of three carriageway expressway

结合具体工程实例,针对高速公路三车道隧道Ⅲ级围岩钻爆设计方案进行了介绍,分别阐述了施工工艺流程,相关爆破参数,光面爆破效果控制措施及施工质量安全控制要点,为今后同类工程积累了宝贵经验。

Combining the factual examples,the paper introduces the design scheme for the rill blast of class Ⅲ surrounding rock of three carriageway expressway,and illustrates the procedure of the construction craft,the relative blasting parameter,the measures for the smooth blasting effect,and the safety control of the construction quality,so as to accumulate the precious experience for similar projects in future.