城市道路建设中海绵城市设计的探索

Exploration of Sponge City Design in Urban Road Construction

摘要:

城市道路受用地面积限制，绿化面积少，下垫面硬质面积多，地表径流量大，初期雨水污染重。在城市道路建设中，如何将降雨最大限度地消纳在城市道路的有限空间内，净化初期雨水径流污染，已成为海绵城市设计的重中之重。为此，通过对无锡市典型海绵型城市道路设计的分析总结，对道路用地面积受限、绿化面积较少条件下海绵城市道路的合理设计进行了探索，提出了能适应全域推广的海绵城市建设优化方案。

Abstract:

Urban roads are constrained by land area, therefore the green space is less, hard area of underlying surface is more, amount of surface runoff is large and pollution of the initial rainwater is serious. In urban road construction, how to maximize the absorption of rainfall within the limited space of urban roads and to purify the pollution of initial rainwater runoff has become a critical focus in the design of sponge cities. Therefore, the design of typical sponge-type urban roads in Wuxi City are analyzed and summarized. The rational design of sponge urban road under the conditions of limited road land area and less green space is explored. The optimum scheme for the sponge city construction suitable for promotion throughout the region is put forward.