塘沽新港地区老城区雨污分流实施改造设计要点

Key Points for Implementation of Reconstruction of Rain and Sewage Diversion in the Old Town of Tanggu New Port Area

针对老城区雨污分流改造中存在现状管线多且复杂,设计及施工难度大等问题,结合天津市滨海新区环保督查雨污分流改造项目——港船泵站污水调头工程,依托物探及设计现场调查,确定雨污分流方案,即:保留原有管道为污水管道,新建雨水管道及部分污水管道,收集初期雨水排入污水系统。经经济性分析,该方案可节约10%的工程造价,还可减少大量管线切改协调工作量。

In view of the problems existing in the transformation of rainwater and sewage diversion in the old urban area,such as many and complex pipelines,and great difficulty in design and construction,combined with the sewage diversion project of Gangchuan Pump Station,an environmental protection supervision project in Binhai New Area of Tianjin,relying on geophysical exploration and design site investigation,the scheme of rainwater and sewage diversion is determined,that is,to keep the original pipeline as sewage pipeline,to build new rainwater pipeline and part of sewage.By economic analysis,the scheme can save 10%of the project cost,and also reduce a lot of work of pipeline cutting and modification.