Research on Waterlogging Prevention and Control in Jinzhong Street Old Town Based on InfoWorks
There are multiple waterlogging incidents in Tianjin's history,with high water level of rivers and poor drainage in the town,which serious impact on transportation and residents travel and cause serious social and eco-nomic losses.Taking Jinzhong Street old town in Tianjin as an example,1D and 2D models were built and coupled by InfoWorks software.The current situation of waterlogging was comprehensively simulated and evaluated in the area.Treatment measures for source reduction,midstream pipeline network renovation,and increase regulation volume downstream were proposed.Through analysis of the impact of treatment measures,a suitable comprehensive treat-ment plan was proposed.The simulation results show that the maximum water accumulation depth at No.1 waterlog-ging point and No.2 waterlogging point after waterlogging control decreased by 49.1%and 61.8%respectively com-pared with the ones before waterlogging control,and the recession time shortened by 71.9%and 79.1%respectively,reaching the 100-year standard.The proposed comprehensive control plan is proved to be scientific and reason-able,providing new ideas for the selection of governance measures and waterlogging prevention and control in old towns.