北京师范大学学报（自然科学版）2018，Vol.54Issue(2)：246-253,8.DOI:10.16360/j.cnki.jbnuns.2018.02.016
济南市山前平原区暴雨内涝模拟
Simulating rainstorm waterlog in piedmont plains in Jinan City
摘要
Abstract
Urban flooding,due to climate change and rapid urbanization, has become a great challenge for Jinan City. In the present study,Infoworks ICM model was used to simulate rainstorm waterlog in piedmont plains of Jinan. One-dimensional stormwater network model and two-dimensional waterlog model were developed to simulate flood inundation for observed and design rainfalls with different return periods. Distributions of inundation nodes were recorded. Simulation results were compared with actual inundation hydrograph, with the model error further analyzed. Occurrence times of maximum water depth at station mesh for one-and two-dimensional models were found to be 21:50 and 20:05,respectively, consistent with actual records. The two-dimensional modeling results showed that maximum water depth was 0.078 which agreed well with observed values. The two-dimensional model performed better in simulations. Rainfall event on2015-08-03 had a 5 year frequency according to two-dimensional model. One-dimensional model may underestimate inundation. An historical stormwater flood was simulated, design rainfalls with different periods were further simulated,the sources of model error was then analyzed. This work will provide some scientific basis for flood control and disaster reduction, and for the construction of "sponge city" in Jinan.关键词
济南市/山前平原区/暴雨洪涝/Infoworks ICM/二维模拟Key words
Jinan City/piedmont plains/rainstorm waterlogging/Infoworks ICM/2D modeling分类
建筑与水利引用本文复制引用
程涛,徐宗学,洪思扬,常晓栋,李怀民..济南市山前平原区暴雨内涝模拟[J].北京师范大学学报（自然科学版）,2018,54(2):246-253,8.基金项目
国家自然科学基金资助项目(51579007) （51579007）
济南市海绵城市水循环演变与水文过程模拟项目 （）
