下穿高速公路大断面双线隧道的施工技术

Construction Technique of Large Cross-section Double-line Tunnel Under-passing Existing Expressway

结合31省道诸暨王家湖至五泄段改建工程横山岗隧道下穿杭金衢高速公路施工实践,介绍大断面双线隧道下穿高速公路的施工方案、施工组织、监控量测、路面沉降观测,为今后类似工程提供借鉴和参考。

Combining with construction practice of Hengshangang Tunnel under-passing Hangzhou-Jinhua-Quzhou Expressway in No.31 Province Highway(Zhuji Wangjia Lake-Wuxie) Reconstruction Project, the article introduces the construction scheme, construction organization, monitoring and measurement, and pavement settlement observation of the large cross-section double-line tunnel under-passing the existing expressway, which can be referred for the future similar projects.