Municipal drainage pipeline groove support blank area reinforcing device

By using a combination structure of fixed piles, walers, supports, retaining plates, and beams in the construction of municipal drainage pipelines, the soil stability problem in the blank areas of trench support was solved, ensuring construction safety and protection of existing pipelines.

CN224186769UActive Publication Date: 2026-05-01YANGTZE ECOLOGY & ENVIRONMENT CO LTD
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Patent Information

Application Number
CN202520805348.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-05-01
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

During the construction of municipal drainage pipelines, the soil in the support gaps caused by existing pipelines intersecting with the new pipelines in the trench has poor stability and is prone to collapse, posing safety hazards and potentially damaging existing pipelines, affecting urban drainage functions and construction costs.

Method used

The structure employs a combination of fixed piles, walers, supports, retaining plates, crossbeams, and slings. Fixed piles are inserted into both sides of the trench, walers are fixed to the fixed piles on both sides of the blank area, supports are fixed to the fixed piles and walers, retaining plates form a retaining wall, and crossbeams are located above existing pipelines and fixed by slings, forming a stable reinforcement structure.

Benefits of technology

It effectively prevents soil collapse, protects the safety of existing pipelines, improves construction safety, and reduces construction risks and costs.

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Abstract

The utility model provides a municipal drainage pipeline groove support blank area reinforcing device, a supported groove is provided with an existing pipeline staggered with a newly-built pipeline, the supporting device comprises a plurality of fixing piles, enclosing purlins, a support, a supporting plate, a cross beam and slings, the fixing piles are inserted into the two sides of the groove side by side, the enclosing purlins are fixed on the fixing piles on the two sides of the blank area, and the supporting plate is fixed on the cross beam. The supports are fixed on the fixing piles and the surrounding purlins on the two sides of the blank area in a plane mode, the supporting plates are arranged between the supports and the side walls of the groove and used for surrounding the retaining wall, the cross beams are erected on the side walls of the two sides of the groove and located on the existing pipeline, and the slings are arranged on the cross beams and the existing pipeline in a sleeving mode and used for fixing the existing pipeline. The bracket is fixed on the fixed piles and the enclosing purlins and is matched with the supporting plate, so that the retaining wall can be effectively enclosed, and soil collapse is prevented; the cross beams are erected on the side walls of the two sides of the groove and located above the existing pipeline, the existing pipeline is fixed in cooperation with the slings, displacement and damage of the existing pipeline caused by soil disturbance in the construction process are avoided, and the safety of the existing pipeline is guaranteed.
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