天津市侯台地区凯苑路隧道给排水工程设计

A Water Supply & Drainage Project Design for Kaiyuan Road Tunnel in Houtai Area of Tianjin

凯苑路隧道为天津市侯台地区城市公园隧道,下穿公园内人工景观湖,因此对隧道的建设、管理以及运行使用均提出较高要求。隧道排水工程设计在规划基础上紧密结合侯台城市公园的建设要求,采用附壁式排水泵房的结构形式,通过进水交汇井的特殊设计将隧道横截沟内的旱季废水及初期雨水汇入泵房的废水集水池内,排入市政污水管道。在保证泵房基本工艺及功能的前提下完成雨废分流,减少对收纳水体的污染,达到保护环境、节省投资的目的。详细介绍隧道的截水、排水和提升泵房的工艺特点及相关设计参数。

Kaiyuan Road Tunnel is proposed to go through Houtai City Park in Tianjin. The tunnel will be buried under a landscape lake of the park. This requires high standards in construction, management and operation of the tunnel. This drainage design fully complies with requirements from the basic planning and Houtai City Park. Structurally, drainage pumping station is attached to walls. We design a wells intersection system that sinks dry season waste water and rainwater into the wastewater sump of the pumping station, then discharges them into municipal sewers. This design not only satisfies the basic requirements of pumping station, but also realizes the rain waste diversion. The design helps to reduce the pollution of storing water, to protect the environment and to save the investment. This paper describes the techniques and design parameters of water cutting off, draining and lifting pump of this project.