Abstract:Under the background of new urban renewal, the construction of underground tunnels has become an important solution to relieve the pressure on high-density traffic networks. However, in the actual design and construction process, the multiple challenges will be faced, such as whether the tunnel drainage is reliable and whether the pipeline relocation can be smoothly implemented and unobstructed. All these issues should be systematically studied. Taking the Zhengzhou Erqi Square Tunnel Project as an example, the tunnel drainage design, and the pipeline relocation and smooth implementing schemes are set forth in detail. The study and analysis of this project can provide the case supporting and new design ideas for the construction of similar underground tunnels.