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双连拱隧道小净距,施工难度大,施工方法、安全质量控制是重点,采用新奥法光面爆破,先中隔墙施工,然后正台阶施工,锚、网、钢拱架混凝土联合支护,圆满完成了施工任务,该项目获得了国家科技进步三等奖。
Double-arch tunnel small spacing, construction difficulty, construction methods, safety and quality control is the focus, the use of new Austrian law smooth blasting, the first wall in the construction, and then the construction of the stage, anchor, network, steel arch concrete joint Protection, successful completion of the construction task, the project won the third prize of national science and technology progress.