Rainwater pipeline construction process

Abstract

The invention discloses a technology based on the construction of rainwater pipelines, including the steps of measuring and setting out, trench excavation, foundation concrete pouring, pipeline laying, inspection well masonry, trench backfilling, rainwater outlets and connecting branch pipes. Clamp-type elastic connection, the slope of the stormwater connection pipe is not less than 1%, and the branch pipe connecting the stormwater outlet is buried in the road lime soil base after compaction, and a second excavation is adopted. The backfill material within the excavation range is medium-coarse sand. The above 0.5m shall be backfilled with C20 concrete, and a construction width of 30‑50cm should be reserved on each side of the excavated stormwater outlet groove and branch pipe groove, and the bottom of the groove shall be compacted. This process has simple construction steps and can greatly shorten the construction period. The connection is tight, and the sealing performance is maintained during the rainwater drainage process, which solves the problem that the existing rainwater pipelines have a cumbersome construction process, a long construction period, and cause rainwater leakage, which is not conducive to rainwater drainage.

Description

technical field [0001] The invention relates to a technology, in particular to a technology based on the construction of rainwater pipelines. Background technique [0002] Rain is a natural phenomenon that is water droplets falling from clouds. The formation process of rain: the water on the ground absorbs heat and turns into water vapor, which rises to the upper layer of the steam layer in the sky. Because the temperature in the upper layer of the steam layer is low, the volume of the water vapor shrinks and the specific gravity increases, and the steam descends. Because the temperature below the steam layer is high, the descending process It absorbs heat in the middle, rises again, meets cold, and then descends again. The gas molecules gradually shrink in this way, and finally gather at the bottom of the vapor layer, forming a low-temperature area at the bottom, and the water vapor concentrates in the low-temperature area, which forms a cloud. The cloud mass gradually bec...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned problems that the existing construction process for rainwater pipelines is cumbersome, the construction period is long, and rainwater leakage is caused, which is not conducive to the dredging of rainwater. It relates to a technology based on the construction of rainwater pipelines. The steps are simple, the construction period can be greatly shortened, the connection between the pipes is tight, and the sealing is maintained during the rainwater drainage process, which solves the cumbersome construction process of the existing rainwater pipes, the long construction period, and the leakage of rainwater, which is not conducive to rainwater the grooming problem