Control device for pipeline settlement in frozen soil thaw settlement area

CN121346083APending Publication Date: 2026-01-16PIPECHINA SOUTH CHINA CO +1
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Patent Information

Application Number
CN202511728845.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing technologies cannot effectively control the rapid settlement of pipelines in frozen soil thawing zones, especially during critical thawing periods when they cannot provide sufficient cooling, leading to rapid pipeline settlement and safety risks.

Method used

The system employs a first support structure and a second support structure spaced apart and fixed to the non-frozen soil layer. It forms an active lifting device through the first and second lifting components, providing a controllable lifting force to compensate for foundation settlement. Combined with an airbag structure and a gas generator, it provides an adjustable lifting force for the pipeline, thereby achieving active control over pipeline settlement.

Benefits of technology

It effectively prevents the continuous and rapid settlement of pipelines, improves operational safety margins, reduces maintenance costs, ensures the long-term reliability and durability of the equipment throughout its entire life cycle, and avoids large deformation and buckling of pipelines or leakage at interfaces.

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Abstract

The invention discloses a control device for pipeline settlement in a frozen soil thaw-collapse area, relates to the technical field of pipeline settlement, and aims to solve the problem of how to control rapid settlement of a pipeline in the frozen soil thaw-collapse area. The control device comprises a first supporting structure, a second supporting structure, a bearing part, a first supporting assembly and a second supporting assembly, the first supporting structure and the second supporting structure are arranged in a spaced mode, and part of the first supporting structure and part of the second supporting structure are suitable for being fixed to a non-frozen soil layer. The bearing part is located between the first supporting structure and the second supporting structure and located on the frozen soil layer, and the bearing part is used for bearing the pipeline. The first supporting assembly is connected between the first supporting structure and the bearing piece, and the second supporting assembly is connected between the second supporting structure and the bearing piece. The first supporting assembly and the second supporting assembly are used for providing upward supporting force for the pipeline when the pipeline settles.
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