Code for construction of drainage pipeline Detailed explanation of matters needing attention in construction of drainage pipeline engineering

With the improvement of our quality of life and the development of social economy. There are more and more urban buildings, so we should do a good job in the construction of drainage pipes. The construction of drainage pipe is closely related to our life, so its quality will directly affect our daily life. Therefore, when doing drainage pipeline construction, we must be professional. So how should we do a good job in the construction specification of drainage pipes? Let's follow Bian Xiao to understand the construction specifications of drainage pipes.

Detailed explanation of construction code of drainage pipeline

Domestic sewage pipes should use egret plastic pipes, cast iron pipes or concrete pipes.

The slopes of domestic sewage cast iron pipes, domestic sewage plastic pipes and rainwater suspension pipes must comply with the design or specification.

The drainage plastic pipe must be installed with expansion joints according to the design requirements and positions. If there is no requirement in the design, the expansion joint spacing should not be greater than 4? m .

Hooks or clips on metal drain pipes should be fixed on the load-bearing structure. The elbow at the bottom of the riser should be provided with piers or fixing measures.

When the exposed pipeline passes through the fire zone, measures should be taken to prevent the fire from penetrating.

Drainage vent pipe should not be connected with air duct or flue, and the vent pipe should be 300? Higher than the roof. Mm, but it must be greater than the maximum snow thickness; In vent 4? When there are doors and windows in M, the ventilation pipe should be 600 feet higher than the top of doors and windows. Mm or to the side without doors or windows; On the flat roof where people often stay, the ventilation pipe should be 2? M, and lightning protection devices shall be set according to lightning protection requirements; The roof is insulated, starting from the surface of the insulation layer.

When the drainage pipeline leading to the outdoor must go down through the wall or the foundation, it should be connected with a 45 tee and a 45 elbow, and the top of the vertical pipe section should be provided with a cleaning port; For the drainage pipe leading to the outdoor drainage inspection well, the inlet pipe in the well should be higher than the drainage pipe or the top of the two pipes should be flush, and the water flow angle should not be less than 90.

For indoor drainage, horizontal pipes and horizontal pipes, horizontal pipes and risers should be connected by 45 tee or 45 tee and 90 oblique tee or 90. Oblique cross The connection between the riser and the end of the discharge pipe shall adopt two 45 or 90 elbows with a radius of curvature not less than 4 times the pipe diameter.

Matters needing attention in drainage pipeline engineering construction

1. The industrial park project has a short construction period and a large amount of work. It is necessary to increase the input of mechanical equipment and labor force during construction to ensure the construction period.

Second, there are many pipelines and complicated procedures. Controlling the construction period of pipeline process is the key to ensure the progress. According to the characteristics of this project, in the process control, the spirit of "underground first, then on the ground; Pipeline first, then backfill "principle.

Three, according to the characteristics of the project, the preparation of construction organization design and construction progress plan, according to its requirements, reasonable arrangement of each division subdivisional work, handle the interspersed lap between each working procedure, to ensure the smooth completion of the project.

Through the summary of the above small series, we know the method of drainage pipeline construction specification, and we also introduce the characteristics of drainage pipeline construction. I believe that through the above contents, everyone has a further understanding of drainage pipeline construction. Because the construction of drainage pipeline directly affects our daily life, we must be professional when installing it to prevent it from affecting our normal life. I sincerely hope that your content will help everyone, and I wish you a happy life!

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