系统化全域背景下的道路工程海绵建设策略

Strategy for Sponge Construction of Road Engineering under Systematic Global Background

摘要:

自2014年全国开展海绵城市建设以来，各地逐渐摸索出了适应自身特色的海绵城市建设思路。总结试点城市经验基础上， 2021年国家启动了系统化全域推进海绵城市建设示范工作，并提出更高的要求。道路工程因其绿化比例小，荷载要求高，在海绵城市设计上存在一定难度。基于杭州市余杭区海绵城市建设现状，介绍了不同横断面的道路低影响开发措施做法，分析了各类海绵措施的优缺点，总结了市政道路工程海绵城市设计要点，探讨了道路工程与周边实现海绵区域联动的策略。

Abstract:

Since the construction of sponge city has been carried out nationwide in 2014, every place has gradually found out the sponge city construction ideas that adapt to its own characteristics. On the basis of summarize the experience of pilot cities, the state launched a systematic and whole-area demonstration work to promote the construction of sponge cities in 2021, and the higher requirements are put forward. Due to the low greening rate and high load requirements, the design of sponge city is difficult. Based on the current situation of sponge city construction in Yuhang District of Hangzhou, the low-impact development measures for urban roads with different cross sections are introduced. The advantages and disadvantages of various sponge measures are analyzed. The key points of sponge city design at municipal road engineering are summarized. And the strategy of realizing the sponge regional linkage between the road engineering and the surrounding area is discussed.