摘要
山地城市地形地貌复杂,地势起伏大,导致产汇流过程复杂,为山地城市洪涝模拟带来了困难。采用暴雨管理模型-平面二维水沙模型(storm water management model-center for computational hydroscience and engineering 2D,SWMM-CCHE2D)单向耦合模型,结合高精度地形数据和多方位的实时监测数据,采用流行、技术可行的暴雨管理模型SWMM,模拟典型山地海绵城市不同设计降雨情景下的产流;采用高精度的平面二维水沙数学模型CCHE,模拟相应的内涝情况。此方法简便易操作。结果发现,山地地形对海绵区的汇流具有快速汇聚的特性,海绵措施能够明显提高山地径流削减率,其中生物滞留带的径流削减效果最明显。
The terrain and topography of mountain cities is complex.The large fluctuation of elevation results in complex runoff processes and brings difficulties to the flood and water-logging modeling and forecasting/warning of mountain cities.This paper used the unidirectional coupled models of storm water management model and the center for computational hydro-science and engineering 2D(SWMM-CCHE2D),i.e.,in combination with high-resolution topography data and multi-aspect real-time monitoring data,the popular and feasible storm water management model(SWMM) was adopted to model multiple design rainfall scenarios and their runoff at a typical mountainous sponge city,and the high-precision 2-D hydraulic model CCHE2D was adopted to model the corresponding water-logging situation.This methodology is simple and easy to implement,and the results show that mountainous terrain has fast collection effect on the runoff at sponge city areas.The sponge city strategies have good effect on the reduction of mountainous runoff rate in the mountainous areas,and the runoff reduction effect is the most obvious in the bio-retention zone.
作者
房亚军
于川淇
金鑫
李建华
夏丽娟
任明轩
FANG Yajun;YU Chuanqi;JIN Xin;LI Jianhua;XIA Lijuan;REN Mingxuan(School of Economics and Management,Beijing Jiaotong University,Beijing 100044,China;Beijing City Tongzhou District Water Bureau,Beijing 100011,China;Tongzhou District Water Supply and Drainage Water Quality Monitoring Station of Beijing,Beijing 101100,China;Sichuan Energy Internet Research Institute,Tsinghua,Chengdu 610000,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2021年第10期898-906,941,共10页
Engineering Journal of Wuhan University
关键词
暴雨管理模型-平面二维水沙模型
山地城市
海绵城市
内涝数值模拟
storm water management model and center for computational hydro-science and engineering 2D(SWMM-CCHE2D)
mountain city
sponge city
water-logging numerical modeling
