基于MIKE 21的上海动物园内涝成因分析及治理措施  

Cause Analysis and Control Measures of Waterlogging in Shanghai Zoo Based on MIKE 21

作　　者：周璟 王欢 ZHOU Jing;WANG Huan(CTG(Hainan)Green Development Investment Co.,Ltd.,Haikou 570125,China;Shanghai Investigation,Design and Research Institute Co.,Ltd.,Shanghai 200434,China)

机构地区：[1]长江三峡(海南)绿色发展投资有限公司,海南海口570125 [2]上海勘测设计研究院有限公司,上海200434

出　　处：《人民珠江》2023年第5期26-32,共7页Pearl River

摘　　要：为了分析研究上海动物园排水系统达标建设后仍然发生内涝的原因、探索最佳治理实践,根据资料分析和现场调研初步判断导致园区内涝的原因与园区水系排水不畅和排水泵站规模不足有关。采用MIKE 21有针对性地构建园区水系水动力模型,模拟并研究现状排涝工况下水系的水文特征值变化,得出园区内涝根本原因在于排水路径不通畅、排水泵站规模不足和布局不合理。基于排水除涝目标提出水系优化和排涝设施改造方案,模拟各方案工程效果,通过排水速率、排水时间、不同区域最大排水时差等指标比选确定各方案的工程对于排水除涝的改善效果,并结合工程经济性确定治理方案为涵管改河和涵管扩建相结合、调整排水格局,以实现控制投资下的最佳治理效果。In order to analyze the cause of waterlogging after the drainage system of Shanghai Zoo reached the standard and explore the best control measures,data analysis and field investigation were carried out,and it was preliminarily determined that the waterlogging in the zoo was related to the poor drainage of the water system and the insufficient drainage pumping station.MIKE 21 was used to build a hydrodynamic model of the water system in the zoo,and the changes in the hydrological characteristic values of the water system under the current drainage condition were simulated and studied.It is concluded that the root cause of waterlogging in the zoo is that the drainage path is blocked,and the drainage pumping station has an insufficient scale and unreasonable layout.In order to promote drainage and remove waterlogging,the water system optimization and waterlogging facility renovation plans were proposed,and the engineering effect of each plan was simulated.Through the comparison of indicators such as drainage rate,drainage time,and maximum drainage time difference in different regions,the effect of each plan in promoting drainage and removing waterlogging was determined.In view of the engineering economy,the plan of expanding culverts and moving some culverts to the river was determined as the best,and the drainage layout was adjusted to achieve the best control effect under the specific investment.

关 键 词：排水除涝 内涝治理 水系优化 MIKE 21 

分 类 号：TU992[建筑科学—市政工程]