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本文以雅泸高速公路C3合同段老虎石隧道大断面V型围岩为例,对隧道大断面V型围岩控制爆破的进行分析,根据围岩情况,及时调整爆破参数,减少超欠挖,以达到最佳爆破效果。
Taking the large-section V-shaped surrounding rock of Tiger Stone Tunnel in C3 Contract Section of Ya-Lu Expressway as an example, the controlled blasting of large-section V-shaped surrounding rock is analyzed. According to the surrounding rock conditions, the blasting parameters are adjusted in time to reduce over- In order to achieve the best blasting effect.