明挖法下穿北运河隧道工程防洪评价及补救措施

Flood prevention evaluation and remedy options of tunnel engineering through the North Canal under the open excavation method

广渠路东延道路工程位于北京市,是中心城与城市副中心通州区的重要联系通道。工程型式为地下隧道,下穿北运河,采用明挖法。通过对该隧道进行防洪评价计算,分析河道行洪与项目安全间的相互影响,提出补救措施,为工程设计提供依据,也为类似工程提供借鉴经验。

Guangqu Road East Extension Project is located in Beijing,is an important channel of contact of the center city and Tongzhou District.The project is an underground tunnel and runs through the North Canal.The open excavation method is adopted.In this paper,flood control evaluation of the tunnel to analyze the interaction between river flood and project safety,and put forward prevention and remedial measures to provide the basis for engineering design,but also provide reference for similar projects.