Study On The Planning And Design Of Sewage Pipe Network In Small Towns In Southern Mountainous Area Of Shaanxi Province

As the infrastructure of town,the drainage network is closely related to people’s life,and it has an important influence on the development of town.In the urban development and construction,with the old urban expansion and transformation as well as new development and construction,the increase of urban population,with the rapid increase of sewage discharge,drainage pipe network planning and design is particularly important.In this study,the design of sewage pipe network of small towns in the mountainous area of southern Shaanxi as an example,to optimize the planning and design of sewage pipe network system,improve the drainage efficiency as the goal,the sewage pipe network system is analyzed from design to construction,so as to provide reference for relevant engineering design.The project in the design,make full use of the terrain elevation,the rational layout of sewage pipes,sewage pipes by gravity flow,the local river pump station;pumping station with traditional pumping station,pumping station with flange manhole covers,ensure the safety of pipeline across the river by a double river;pipe closure using weir type closure by wells.Adjust the water level control of the sewage pipe flow;pipeline laying,buried by most of the local overhead,overhead pipeline inspection wells and pier pier poured together,is provided with a ladder for easy maintenance;lifting pump outlet pipe laying every 120 m set pressure along the pipeline inspection wells,wells and Wells is also provided with an air vent.At present,the sewage pipe network has been fully construction.From the current implementation of the effect,the sewage pipe network construction gradually implemented,greatly improve the efficiency of sewage collection,sewage directly discharged into the river was significantly reduced,thus the town area water environment improvement,sewage collection system has been gradually emerging.This not only has a positive effect on the ecological environment,quality of life and the ecological environment of the lower reaches of the local people,but also has a very important significance to the sustainable development of the society.