陈明发,马星,赵耀龙,等. 城市更新视角下面向内涝防治的地表空间布局优化[J]. 水利水运工程学报,2023(3):19-28. doi: 10.12170/20220111003
引用本文: 陈明发,马星,赵耀龙,等. 城市更新视角下面向内涝防治的地表空间布局优化[J]. 水利水运工程学报,2023(3):19-28. doi: 10.12170/20220111003
(CHEN Mingfa, MA Xing, ZHAO Yaolong, et al. Optimal design of surface layout for alleviating urban flood in urban renewal[J]. Hydro-Science and Engineering, 2023(3): 19-28. (in Chinese)). doi: 10.12170/20220111003
Citation: (CHEN Mingfa, MA Xing, ZHAO Yaolong, et al. Optimal design of surface layout for alleviating urban flood in urban renewal[J]. Hydro-Science and Engineering, 2023(3): 19-28. (in Chinese)). doi: 10.12170/20220111003

城市更新视角下面向内涝防治的地表空间布局优化

Optimal design of surface layout for alleviating urban flood in urban renewal

  • 摘要: 城市暴雨内涝已成为威胁人民生命财产安全的重要灾害之一。随着我国步入“存量规划”时代,城市更新日渐成为存量空间布局优化、解决城市问题的重要手段。针对面向内涝防治的地表空间布局优化在城市更新规划中的应用及方法创新问题,通过耦合SCS-CN水文模型与多元线性规划算法,构建地表空间布局优化模型,减少城市建筑空间布局对地表径流的影响,从而降低暴雨内涝的发生风险。以广东佛山为例,平均减少城市建筑空间布局对地表径流的影响为18.11%,最大达20.63%。地表空间布局优化模型通过减少极低与极高密度地表空间,增加低、中、高密度地表空间的方式进行,且以地表空间布局的小规模优化调整为主,可较好地与城市更新规划原则衔接,具备较强实用性。通过建筑密度总量控制及地表空间布局调整的方式,将优化结果纳入国土规划工作,从而降低暴雨内涝的发生风险。

     

    Abstract: Urban waterlogging has become an important disaster that threatens people’s lives and property. As China enters the era of “stock planning”, urban renewal has become an important way to optimize spatial layout and solve urban problems. Existing studies have shown that land expansion and land use layout are important causes of urban waterlogging. The optimization of urban space layout has positive significance for alleviating waterlogging. Aiming at the innovation of the application mode of urban layout optimization in urban renewal planning under waterlogging prevention, we proposed an urban renewal planning path for alleviating waterlogging by constructing an urban spatial layout optimization model. Taking Foshan, China as an example, the model reduced the impact of urban building layout on surface runoff by 18.11% on average. The optimization process did not change the surface space on a large scale. An urban renewal planning model for alleviating waterlogging was proposed. The above work is expected to be realized through the control of total building density and the adjustment of urban surface layout in urban renewal planning work.

     

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