Water drainage pipeline mounting process

Abstract

The invention relates to the field of pipeline mounting, in particular to a water drainage pipeline mounting process. The water drainage pipeline mounting process comprises the following steps: step 1) of excavating a pipeline mounting groove; step 2) of mounting a tube seat in the groove; step 3) of sequentially hoisting a plurality of pipeline units; step 4) of connecting adjacent pipeline unitsto form a water drainage pipeline; step 5) of coating thermal-insulation paint on the surface of the water drainage pipeline to form a thermal insulation layer; step 6) of backfilling soil and compacting the soil to form a pipeline soil layer, and controlling vertical height difference between the top of the pipeline soil layer and the top of the water drainage part to be 2cm-5cm; step 7) of spreading porous stones on the pipeline soil layer to form a stone heat insulation layer; and step 8) of backfilling soil into the stone heat insulation layer, and compacting the stone heat insulation layer to repair ground. The water drainage pipeline mounting process has the effects of enabling a water body in a water drainage tube to be not liable to ice and expand, and enabling the water drainagepipeline to be not liable to damage.

Description

technical field [0001] The invention relates to the technical field of pipeline installation, in particular to a drainage pipeline installation process. Background technique [0002] At present, with the development of the city, more and more people live in the city, which leads to a large increase in water consumption, which in turn leads to a large increase in drainage demand. Therefore, it is necessary to build a drainage network through drainage pipes to ensure the drainage function of the city. [0003] The installation of existing drainage pipes usually includes the steps of excavating trenches, installing pipe sockets, hoisting pipe units, connecting adjacent pipes, backfilling to repair the ground, etc. By burying the drainage pipes underground, the underground space can be effectively used and reduced Drainage pipes occupy the ground space and reduce the impact on people's normal activities. [0004] There are following defects in the above-mentioned prior art sche...

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Problems solved by technology

[0005] The existing drainage pipes are mainly HDPE drainage pipes with low cost and a series of advantages such as stable and reliable interface, impact resistance, crack resistance, aging resistance and corrosion resistance. However, HDPE is a polymer material, and its crack resistance Compared with metal and concrete, the performance has a big disadvantage. If the drainage pipe is installed in the cold area of ​​the north, the water body in the pipe may freeze and expand due to the low temperature, which may cause the drainage pipe to be cracked, resulting in The drain is broken, so there is room for improvement

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