给排水中的海绵城市设计及应用

Sponge City Design and Application in Water Supply and Drainage

海绵城市是当下设计必须考虑的因素。各地的海绵导则计算的过程有一些差异,但是基本的目标流程等大概念是一致的。以天津某设计地块为例,介绍了透水铺装、下凹式绿地等常用LID设施的设置,按当地的导则计算了综合径流系数、下凹式绿地率、需控制的径流总量及透水铺装率等指标参数。

The sponge city is a factor that must be considered in current design.There are some differences in the process of calculating the sponge guidelines,but the basic concepts such as the basic process are consistent.This article takes a design plot in Tianjin as an example,introduces the setting of common LID facilities such as permeable pavement and sunken green space,and calculates the comprehensive runoff coefficient,sunken green space rate,and total runoff to be controlled according to local guidelines.Quantity and permeable pavement rate and other index parameters.