Urban Rain And Sewage Diversion Design Of Hungpu Area In Guangzhou

With the rapid economic development,the environment has been seriously affected.In recent years,water resources protection becomes the focus and the difficulty of the environmental protection,which the urban drainage system has become the attention focal point for each big city.Heavy rain in the rainy season make all over the country open "seeing sea" model,construction of urban drainage system has become the most important point.This article takes the urban rain and sewage diversion design as the research object,field survey and case study to analysis,study from the urban drainage system,survey and analysis of Guangzhou Huangpu District Drainage and rain and sewage design and practice,summarize current problems and put forward feasible policy.Based on the sustainable development of urban landscape ecosystem,it is hoped that through the construction practice to give the construction,in the construction and the urban sewage system will be built a reference,the research results are as follows:(1)The urban drainage system is consist of combined system,diversion system and mixed system,As far as the city is concerned,rain and sewage diversion system is still relatively ideal,perfect drainage system,is most applicable in new city,New Development Zone,and cities of open terrain conditions and big development space.(2)City rain and sewage diversion enhances the city defense capabilities to natural disasters,and has social benefits;improve the sewage treatment rate,reduce the use cost,produce certain economic benefits;and through the rain pipe collect rainwater and discharge the rain into the river.Urban environmental sanitation,greening department can also directly fetch water through the river in the dry season,so as to effectively conserve water resources,resulting in environmental benefits.(3)Guangzhou Huangpu District's natural environment condition is good,the geological condition is very stable,river water is rich,social environment is good,have better geological and economic conditions of city rain sewage diversion transformation,also because of the complexity of the old city,bring the rain and sewage shunt design practice some challenges.(4)Through the prediction and collection of rainwater and sewage,and foundation of related practice case analysis,to guide various blocks of Guangzhou Huangpu District practice for the reform of rainwater and sewage diversion.Drainage system and urban construction,water resources allocation,ecological construction are considered as a whole,bring the collecting,storage,treatment,reuse,infiltration into the underground drainage into urban construction planning,designing of rainwater and sewage diversion system for pipe network and building riser.