城市超长隧道排水系统精细化设计探讨

Discussion on Refined Design of Drainage System for Urban Super-long Tunnel

摘要:

关于城市下穿隧道排水的设计标准、设计原则及基本要求，现行的设计规范、导则及指南中已有较为详细的规定。然而，如何开展精细化设计，增强隧道排水能力，仍需不断探索。以无锡市高浪路快速化改造工程隧道为例，从隧道废水组成、纵断面设计、挡水系统设计及排水系统设计四个方面探讨了城市超长隧道排水系统的精细化设计要点，并总结了工程施工及竣工验收过程中发现的一些问题及改进措施，以期为相似工程提供设计指引和案例参考。

Abstract:

The current design specifications，guidelines and handbooks already contain the detailed regulations regarding the design standards，design principles and fundamental requirements for the drainage of urban underpass tunnels. However，how to carry out the refined design and enhance the drainage capacity of tunnels still requires continuous exploration. Taking the tunnel of the Wuxi Gaolang Road Expressway Reconstruction Project as an example，the key points in the refined design of urban super-long tunnel drainage system are discussed from four aspects of the tunnel wastewater composition，longitudinal section design，water retaining system design and drainage system design. And some problems found in the engineering construction and final acceptance，and the improvement measures are summarized in order to provide the design guidance and reference cases for similar projects.