全面介绍某公路改建工程隧道开挖与支护,防排水、二次衬砌、地质超前预测预报与监控量测等方面的技术,解决了地质超前预测预报、光面爆破、无滴渗防水、二次衬砌等多项技术难题.%The paper introduced a highway reconstruction project tunnel’s excavation and support, anti-drain, the secondary lining, forecasting and monitoring.The technical problems of geological pre-reporting, smooth blasting, no drip water infiltration and second lining are solved.
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