青海某一级公路隧道防水施工技术

Waterproofing Construction Technology of a First Class Highway Tunnel in Qinghai

青海省民和至小峡公路隧道使用暗挖法开挖,采用了土工布+EVA自粘胶膜防水卷材的防水设计方案。本文介绍了该公路隧道的防水施工工艺,详细阐述了施工过程中遇到的吊带断裂和搭接缝焊接不实问题,并提出了解决方案。

Undermining method was applied in Minhe-Xiaoxia highway tunnel of Qinghai Province, which adopted a waterproofing scheme of combining geotextile and EVA self-adhesive film waterproofing membrane. The article introduced the waterproofing construction technology of the highway tunnel, detailed the problems of sling broken and failed welding lap, and proposed the solution.