YANG Yahong,YAN Junjiang,YU Yang,et al.Simulation analysis of infiltration performance and cause of low impact development in university campus[J].Journal of Shenzhen University Science and Engineering,2020,37(4):362-371.[doi:10.3724/SP.J.1249.2020.04362]





Simulation analysis of infiltration performance and cause of low impact development in university campus
1)兰州理工大学土木工程学院, 甘肃兰州 730050
2)清华大学深圳研究生院,广东深圳 518055
YANG Yahong1 YAN Junjiang1 YU Yang2 HU Jiawei1 and ZHANG Huining1
1) College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu Province, P.R.China
2) Shenzhen Graduate School of Tsinghua University, Shenzhen 518055, Guangdong Province, P.R.China
stormwater management model with geographic information system low impact development (LID) return periods water causes water accumulation quantity reduction rate
以中国兰州市某校区为例,借助雨洪管理-地理信息系统(stormwater management model with geographic information system, SWMM-GIS)模型对该片区在不同重现期降雨条件下,对绿色屋顶和透水铺装的雨水径流控制效果进行模拟.针对地表高程落差较大,管段埋设坡度较大等特点,分析有特殊地形的区域在低影响开发(low impact development, LID)前后,对历时长/短、强降雨的处理效果及可能相关的因素.结果表明,LID设施对节点积水量的控制率随重现期的增加而减弱;在坡度较小、渗透能力良好(包括LID设施的渗透能力)的区域,对中、小重现期降雨形成的径流有较好的改善效果.对坡度较大,并添加透水铺装的子汇水区及邻近的雨水检查井进行局部LID性能分析,发现在特定降雨条件下,LID设施最大入渗量所在时段与最大降雨量的时段可基本重合.研究成果可为水利部门及科研机构探究LID设施性能,以及中国许多城市旧城改造中内涝问题的解决等方面提供参考.
Taking a campus in Lanzhou city of China as an example, we simulate the detention effects of green roofs and permeable pavement under different return periods rainfall conditions by the stormwater management model with geographic information system (SWMM-GIS), and analyze the treatment effect of long and short duration of heavy rainfall and the possible related factors before and after low impact development (LID)with higher elevation drop and bigger buried pipeline slope of pipe section . The results show that control rate of LID facilities on node water volume recedes with the increase of the recurrence period, the areas with small slope and good permeability (including permeability of LID facilities) have a better improvement effect on runoff formed by rainfall in the middle and small recurring periods. In addition, a local LID performance analysis is conducted for the sub-catchment area with a large slope and permeable pavement and the adjacent rain inspection well, and we find that the period of maximum LID infiltration may coincide with the period of maximum rainfall under specific rainfall conditions. Our research results can be used as an effective value for relevant water conservancy departments and research institutions to explore the performance of LID facilities, as well as urban waterlogging and stormwater runoff.


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Foundation:Science and Technology Program of Gansu Province(TJ201-G01)
Corresponding author:Associate professor YANG Yahong. E-mail:yangyahong@Lut.cn
Citation:YANG Yahong, YAN Junjiang, YU Yang, et al. Simulation analysis of infiltration performance and cause of low impact development in university campus[J]. Journal of Shenzhen University Science and Engineering, 2020, 37(4): 362-371.(in Chinese)
作者简介:杨亚红(1976—),兰州理工大学副教授、博士.研究方向:水质净化机理. E-mail: yangyahong@Lut.cn
引文:杨亚红,闫俊江,蔚阳,等. 校园低影响开发渗蓄性能及成因模拟分析[J]. 深圳大学学报理工版,2020,37(4):362-371.
更新日期/Last Update: 2020-07-26