首页|基于SWMM的东平县中心城区低影响开发设施规模量化与布局

基于SWMM的东平县中心城区低影响开发设施规模量化与布局

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低影响开发设施可有效应对全球极端气候和城市化进程带来的城市内涝问题,目前,在城区尺度进行低影响开发设施规模量化与布局的研究还不多见.文章提出系统的LID规模量化和空间布局的方法,并以东平县中心城区为例进行实证研究,通过构建SWMM模型进行验证.以中心城区年径流总量控制率75%为目标,共布局LID面积984.25 hm2,主要分布于96处内涝易发点.其中,雨水花园、绿色屋顶、透水铺装和下沉绿地建设面积分别为 107.60 hm2、7.50 hm2、660.96 hm2 和 208.19 hm2,总调蓄容积为 670590 m3.经模型模拟验证,东平县中心城区年径流总量控制率提升至75.72%,达到预期目标.老城区、东平经济开发区、滨河新区、白佛山组团和大清河组团的最大峰值径流量分别削减56.65%、55.36%、53.02%、48.60%和2.90%.研究可为城区尺度LID布局设计提供理论支撑和科学依据.
Quantification of the Scale and Layout of Low Impact Development Facilities in the Central City of Dongping County Based on SWMM
Low Impact Development(LID)facilities can effectively address urban flooding issues caused by global extreme weather and urbanization processes.Currently,there are few studies on the quantification and layout of LID facilities at the urban scale.This article proposes a systematic method for LID scale quantification and spatial layout,with an empirical study using the central urban area of Dongping county as a case study.By constructing and validating an SWMM model,the study aims to control 75%of the annual runoff volume in the central urban area,laying out a total LID area of 984.25 hectares,mainly distributed across 96 flood-prone points.The construction areas for rain gardens,green roofs,permeable pavements,and sunken green spaces are 107.60 hectares,7.50 hectares,660.96 hectares,and 208.19 hectares,respectively,with a total retention volume of 670,590 cubic meters.Model simulation and validation indicate that the annual runoff control rate in Dongping's central urban area increased to 75.72%,achieving the expected target.The maximum peak runoff reductions for the old town,Dongping Economic Development Zone,Binhe New Area,Baifoshan Group,and Daqinghe Group are 56.65%,55.36%,53.02%,48.60%,and 2.90%,respectively.This study provides theoretical support and scientific basis for LID layout design at the urban scale.

storm water management modelsponge citylow impact development facilitieslandscape architecture

姜芊孜、赵宇桑、詹雨尘

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山东建筑大学建筑城规学院

山东建筑大学建筑城规学院风景园林系

SWMM模型 海绵城市 低影响开发设施 风景园林

山东省自然科学基金资助项目山东省高等学校"青创团队计划"

ZR2023ME1662022KJ202

2024

现代城市研究
南京城市科学研究会

现代城市研究

CSTPCDCHSSCD北大核心
影响因子:0.922
ISSN:1009-6000
年,卷(期):2024.(7)
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