严寒地区公路隧道防排水技术

Technology of Waterproof and Drainage of Highway Tunnel at Severe Cold Area

隧道工程的防排水施工历来是隧道施工的重点和难点,防排水施工成功与否直接关系到隧道工程的质量和使用寿命。本文结合吉林省第一座公路连拱隧道施工,针对埋层浅、围岩风化严重的情况,介绍了严寒地区公路连拱隧道如何进行防排水,以及在防排水过程中采用的若干新技术。

The waterproof and drainage constructions of tunnel project are constantly important and difficult points in tunnel construction. Whether the water proof and drainage constructions are in success, that directly involves the tunnel project quality and one＇s service life. Around the first multiple arch tunnel construction in Jilin Province and aiming at its shallow imbedded course and its wall rocks serious weathering, the paper introduces the waterproof and drainage methods for multiple-arch tunnels at severe cold area and the several new techniques adopted in those processes.