MONITORING AND EVALUATION OF STORMWATER CONTROL EFFECT VIA LOW-IMPACT DEVELOPMENT IN RESIDENTIAL DISTRICTS
-
摘要: 以某新建建筑小区为研究对象,通过构建低影响开发雨水排水系统,实现了雨水径流总量减排和峰值削减的多目标控制。采用同场次降雨对比分析的方法,在该小区6个排口(A~F)分别设置监测点,并选择下垫面类型组成相似的传统建筑小区排口(G)作为对比监测点。通过7场典型降雨监测数据的分析表明:与传统建筑小区相比,低影响开发建筑小区场次雨水径流外排总量削减率为12.1%~100%,场次雨水径流污染物(以SS计)总量削减率为69.6%~100%,峰值削减率为12.3%~100%。通过建立数学模型对典型年降雨数据进行了连续模拟,结果表明:低影响开发建筑小区平均径流外排总量削减率为77.3%,污染物总量削减率为66.4%。因此,监测和模拟结果均表明低影响开发雨水系统可有效控制雨水径流的外排总量和污染负荷。研究结果可为我国今后海绵型建筑小区建设提供技术支撑。Abstract: A new residential district developed via low impact development (LID) was selected as the research project, the multi-target control effect of total runoff volume and peak flow rate was achieved. The method of comparative analysis under the same rainfall event was adopt, six monitoring sites were selected at each outlet (A to F) in the LID residential district, and an outlet (G) from traditional residential district was selected as the comparison monitoring site, which had similar underlying surface types with the LID residential district. The monitoring results via seven typical rainfall events showed that: compared with traditional residential district, the LID residential district's runoff discharge total volume was decreased by 12.1%~100%, while the pollutant reduction rate was 69.6%~100% and the peak flow reduction rate was 12.3%~100%. By continuous modeling of typical annual rainfall data, the results showed that reduction rate of total runoff discharge volume was 77.3%, and that of pollutants was 66.4%. Therefore, both monitoring and modeling results indicated that the LID residential district could effectively control the total discharge of runoff and pollution load. The above research results could provide technical support for the development of sponge-residential district.
-
Key words:
- residential district /
- low-impact development /
- stormwater management /
- monitoring /
- evaluation
-
李娜,张念强,丁志雄,等.我国城市内涝问题分析与对策建议[J].中国防汛抗旱,2017, 27(5):77-79,85. 国家统计局. 中华人民共和国2019年国民经济和社会发展统计公报[N].2020-02-29. 仇保兴.海绵城市(LID)的内涵、途径与展望[J].建设科技,2015,51(3):71-78. 王建龙,涂楠楠,席广朋,等.已建小区海绵化改造途径探讨[J].中国给水排水,2017,33(18):1-8. 康威.建筑与小区低影响开发雨水系统研究[D].重庆:重庆大学,2017. 李亮.绿色建筑小区景观水体水量调节与水质保障技术研究[D]. 重庆:重庆大学,2016. 徐宗学,程涛.城市水管理与海绵城市建设之理论基础:城市水文学研究进展[J].水利学报,2019,50(1):53-61. NGUYEN T T, NGO H H, GUO W, et al. Implementation of a specific urban water management sponge city[J]. Science of the Total Environment, 2019, 652:147-162. BAI Y R, ZHAO N, ZHANG R Y, et al. Storm water management of low impact development in urban areas based on SWMM[J]. Water,2018, 11(1):1-16. 邹常亮.低影响开发(LID)小区面源污染过程与控制效果研究[D].青岛:青岛大学,2017. 黄俊杰,沈庆然,李田.植草沟控制道路径流污染效果的现场实验研究[J].环境科学,2015,36(6):2109-2115. 中华人民共和国住房和城乡建设部. 海绵城市建设评价标准:GB/T 51345-2018[S].北京:中国建筑工业出版社,2019:22. 国家环境保护局. 水质悬浮物的测定重量法:GB 11901-89[S].北京:中国标准出版社,1990:2. 乔梦曦.区域开发不同尺度雨水系统关系研究[D].北京:北京建筑大学,2013. 侯精明,李东来,王小军,等.建筑小区尺度下LID措施前期条件对径流调控效果影响模拟[J].水科学进展,2019,30(1):45-55. 杨钢,徐宗学,赵刚,等.基于SWMM模型的北京大红门排水区雨洪模拟及LID效果评价[J].北京师范大学学报(自然科学版),2018,54(5):628-634.
点击查看大图
计量
- 文章访问数: 154
- HTML全文浏览量: 24
- PDF下载量: 3
- 被引次数: 0