如何优化城市住区绿地布局形态管理场地雨洪?——基于重庆某住区的模拟实证研究  

How to Optimize Green Space Layout in Urban Residential Areas for Stormwater Management?——Empirical Evidence from Chongqing

作　　者：王茜 颜文涛 冯都喜 WANG Xi;YAN Wentao;FENG Duxi

机构地区：[1]重庆大学建筑城规学院 [2]同济大学建筑与城市规划学院,高密度人居环境生态与节能教育部重点实验室

出　　处：《西部人居环境学刊》2019年第1期38-44,共7页Journal of Human Settlements in West China

基　　金：国家自然科学基金面上项目资助(51278504);国家自然科学基金面上项目资助(51678087);中央高校基本科研业务费专项资金资助(22120180267)

摘　　要：国内外学者针对雨水管理目标下的城市住区场地设计展开了较多研究,但对住区绿地系统的形态特征和径流控制的定量关系还缺乏相关探讨。研究对住区绿地形态特征与径流水系特征进行归纳分类,然后选择Uwater Drainage作为场地场次降雨径流的模拟软件,基于重庆某住区设计方案展开降雨径流的实证模拟研究。研究了住区建筑布局与绿地形态对降雨径流的影响特征,探索了整合雨水管理功能的住区绿地系统复合结构。通过将雨水管理目标融入住区规划设计阶段,有利于住区更加有效地实现雨水管理目标。MMany researches have been done on the design of urban settlements under the target of stormwater management.However,the quantitative relationship between the morphological characteristics of green space and the runoff control objectives is still not discussed in depth.Firstly,it classifies the green space morphological characteristics and runoff water system characteristics in settlements.Then it employs Uwater Drainage software to simulate the rainfall runoff status of the site based on the design of a residential area in Chongqing.It illustrates the influence of residential building layout and green space morphology on rainfall runoff,and explores the composite structure of residential green space system integrating rainwater management functions.It is conducive to the transformation from the traditional residential planning method to the multi-parameter design method,and achieves the goal of improving the comprehensive benefi ts of the residential green space system.Through simulation experiments,it can be seen that in the form of green space in residential areas,other morphological indicators are kept unchanged,and the larger the green space is,the higher the storage rate of rainwater is,and the stronger the regulation of rainwater runoff is.The morphological characteristicsof green space have different effecton runoff control.According to amount change of rainfall runoff,the influence of morphological characteristics on runoff control is judged.From being strong to weak,green land scale>green space uniformity>green space dispersion>green space shapes index.Complex morphological indices have less effect on rainfall runoff at residential scales.About the residential building layout mode,different settlement patterns are the same for the control of the runoff in the two scenarios of general rainfall and heavy rain.From being strong to weak,the original site>low-level scatter>high-level scatter>group type>multi-level determinant>high-rise peripheral settlement shapes index.Site development will lead to a certai

关 键 词：城市住区 绿地形态 功能参数 雨洪管理 

分 类 号：TU984.113[建筑科学—城市规划与设计]