受限空间下上海中心城区排水系统设计对策

Design Countermeasures of Drainage System in Shanghai Central Urban Area under Confined Space

摘要:

以上海中央商务区排水系统为例，系统性地讨论了在受限空间下，泵站及调蓄池的合建方案以及管网的施工方案。通过合理布局优化建设空间，在泵站用地仅《上海市控制性详细规划技术准则》建议值60%左右的情况下完成了雨污水泵房的布置，并通过纵向空间的利用，进一步实现了泵站与初雨调蓄池的合建；同时，通过对比分析，采用盾构法作为合流干管的施工工艺，较传统顶管法在主干道路上减少了50%的施工井数量，减轻了对现状交通的影响。

Abstract:

The co-construction scheme of pumping station and storage tank and the construction scheme of pipe network under the confined space are systematically discussed by taking the drainage system of Shanghai CBD as an example. Through the rational layout and optimization of the construction space, the layout of the rainwater and sewage pumping station is completed when the land area of the pumping station is only about 60% of the recommended value in Technical Guidelines of Shanghai Municipal Control Detailed Planning. And through the use of longitudinal space, the co-construction of pumping station and storage tank is further realized. By comparing and analyzing, the shield method is used as the construction technology of the combined sewage trunk pipe, which can reduce the number of construction wells on the main road by 50% compared with the traditional jacking method, and relieve the impact on the current traffic.