地下道路明挖施工中交通导改的设计思路与实践

Design Approach and Implementation of Traffic Diversion During the Open Excavation Construction of Urban Tunnels

市政道路的改造与扩建工程往往会对既有道路网络及周边交通系统带来严重干扰,目前许多城市开始在原有市政道路下明挖修建地下道路,建设地下道路系统。然而,地下工程施工周期长,且明挖施工过程中多处施工围挡同时占道的情况难以避免,给城市交通带来了巨大的挑战。为有效应对地下道路明挖施工期间交通导改对区域交通影响大的问题,本文采用案例分析法,以广渠路东延(怡乐西路-东六环路)道路工程为例,对该工程的交通导改设计进行了详细阐述,提出涵盖分流措施、工程实施措施以及管理措施3个方面的交通导改方案,梳理了地下道路明挖施工期间交通导改的设计思路。

The renovation and expansion projects of municipal roads often cause serious interference with the existing road network and surrounding transportation systems.Currently,many cities are starting to excavate and build underground roads under the existing municipal roads,constructing underground road systems.However,the construction period of underground engineering is long,and it is difficult to avoid the situation where multiple construction fences occupy the road during the open excavation construction process,which poses a huge challenge to urban transportation.To effectively address the significant impact of traffic diversion on regional traffic during underground road excavation construction,this article adopts a case study method,taking the Guangqu Road east extension(Yile West Road-East Sixth Ring Road)road project as an example,proposes a traffic diversion plan covering diversion strategies,engineering implementation measures,and management strategies,and sorts out the design ideas for traffic diversion during the open excavation construction of underground roads.