1. 1 project overview
Qingxian Sewage Treatment Plant is located in the northwest of the city, and its supporting pipe network mainly collects domestic sewage and industrial wastewater in the areas south of the North Ring Road, north of the South Ring Road, west of the canal and east of the West Ring Road.
This project is the drainage project of Qingxian North Ring Road, which collects the drainage from the north of Xinhua Road and the west of the canal. The sewage from Dongcheng District of Expressway enters the sewage treatment plant through this pipeline, and the rainwater enters the industrial and commercial canal on the north side of the North Ring Road through the overflow. To the west of the expressway, the sewage pipe enters the sewage treatment plant.
1. 1. 1 project location
The starting point of the pipeline is located at the east of the intersection of Ganning Street and Beihuan Road 100 meters, and the end point is the sewage treatment plant, with a total length of 2689 meters. W 1-W28 section: the pipeline is arranged between the north side of the path and the high-voltage pole, with the center line of the pipeline 5.5m away from the high-voltage pole and16.5m away from the center of the path; W29-W3 1 Section: The center line of the pipeline is 7m east of Donggou Expressway; W33-W34: The pipeline passes under the expressway bridge; Section W35-W64: The pipeline is arranged on the south side of the road, and the center line of the pipeline is 5m away from the south side of the road.
1. 1.2 pipe diameter, pipeline and interface
The pipeline specifications in this section are mainly DN800, DN 1000 and DN 1500, and the pipeline is a second-class reinforced concrete socket with flexible apron interface.
1. 1.3 project content
* * * Laying reinforced concrete pipes DN 800× 1 139m, DN 100× 1468m, DN 1500× 202m, DN1200× 500.
1. 1.4 engineering features
The characteristics of this project are: large amount of work, tight construction period, complex construction lines and many underground obstacles.
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