The City Drainage System Of Integration And Optimization Research

The city drainage and the city waterlogged field drainage is an important work of urban construction and development, with our country the acceleration of the urbanization process, and at the same time as a subject, the more attention caused by many department,such as water conservancy and city construction, it is also an important part of the city of hydrology, Duing to the discipline focus and the different industry standard, There’s a lot of dispute about the relationship between the two parameters and the standard, given to the actual work to bring a lot of inconvenience. Therefore, it is necessary to analyze and study.The differences in the calculation method between the city drainage and the city waterlogged field drainage, can bring two kind of different calculation methods to determine whether the drainage, and draining facilities adapt to the problems, which can meet the same can rule out the requirements of the storm. Therefore, it is necessary to analyze urban construction and the design of water conservancy department each interface standards, in order to ensure that the city construction department of the small areas of discussion design flow of rain amount, can match the large area rain flow quantity match by the water conservancy department, make the same storm smoothly and discussion from the city into the inland, and finally by draining lock which together to drain the row or by draining stood a row pile to discharge area.This article, by comparing the material selection of method (years maximum method and the years maximum method) heavy rains, analyze and get the return period of conversion relation of different material selection method; Analysis and compare the different calculation methods of urban drainage and draining flow; By HEC-RAS software,based on the basic principle of unconstant current,using the river-pumping station unified modeling,change the water pump installed sets and the river bottom width,and calculation river of the highest water surface lines,Comparing with he city waterlogged field drainage requirement of the the water level,thus obtains the best draining installed sets and type.