Study On The Present Situation,Causes And Countermeasures Of Waterlogging In Yizheng City

Yizheng is located in the north bank of the lower reaches of the Yangtze River,at the top of the Yangtze River Delta,is the geometric center of ningzhen-Yang "Silver Triangle"area,facing the Yangtze River in the south and hills in the north,about 50%of the area is low-lying plain polder area.There are river tides in the south and mountain torrents in the north,which are prone to typhoons,heavy rains and high tides in flood season,and thus are heavily threatened by waterlogging all the year round Since the beginning of the 21st century,with the acceleration of urbanization,the land type of Yizheng city has changed greatly,resulting in a large number of water spots in the face of extreme rainstorm weather,and the problem of urban waterlogging urgently needs to be solved.Taking yizheng as an example,the corporation introduces the domestic and foreign research by means of literature review and management experience,from regional watershed in the form of field research,the present situation of water and drains facilities of yizheng city waterlogging corporation present situation investigation,discovered due to yizheng city corporation is located in low-lying areas along the river,waterlog is more outstanding,especially the old existing in urban drainage facilities aging is more,Moreover,the design standard of drainage pipe network is low,and there are still many rainwater and sewage confluence pipe network.The management of drainage pipe network is chaotic,and the complete management system is not formed,which leads to the occurrence of water accumulation points easily once the heavy rainfall occurs.To this,this paper in-depth analysis of yizheng city waterlogging origin,corporation choose hongye storm drainage in the process of analysis simulation software for simulating yizheng city drainage pipe network,and extreme weather is the main research focus on the distribution of urban water points,and network capacity and the present situation about the present situation of key urban waterlogging risk assess,yizheng city drainage pipe network corporation found drainage ability is insufficient,The waterlogging in urban area is mainly caused by the restriction of geographical area,the deepening of the hardening degree of urban underlying surface,the insufficiency of drainage facilities and the poor management and supervision.Finally,this paper puts forward the countermeasures to improve the prevention and control of waterlogging,that is,to improve the urban drainage and waterlogging engineering system,improve the management level of drainage and waterlogging work,and promote the overall management of waterlogging.Urban waterlogging prevention and control is related to the safety of people’s life and property,as well as the stability and development of social economy.Scientific and reasonable urban waterlogging prevention and control is very important for the stability and development of a city.The research results of this paper will further improve the urban waterlogging prevention and control system in Yizheng city,provide a more powerful and safe guarantee for people’s life,and also provide useful reference for other urban waterlogging prevention and control.