隧道施工期间防排水施工不达标,对于隧道后期运营以及隧道使用寿命存在很大的影响,且进行防排水处理难度大、费用高,效果差。以米仓山隧道为例,介绍了公路隧道防排水施工方法,铺设PVC复合土工布防水板工艺、排水管道施工等,希望对相关领域工程设计与施工实践等起到一定的借鉴作用。 Water and drainage construction during the tunnel construction is not up to standard, which has a great impact on late tunnel operation and service life of the tunnel. It is also very difficult and costly to carry out drainage and drainage treatment, and the effect is poor. Taking Micangshan Tunnel as an example, this paper introduces the construction methods of waterproofing and drainage of highway tunnels, the laying of PVC composite geotextile waterproofing board technology and the construction of drainage pipes. It is hoped that it will play a certain reference role in engineering design and construction practice in related fields.