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Steel pipe connecting structure for compensating differential settlement and construction method

A technology for connecting structures and pipelines, applied in the direction of pipes/pipe joints/fittings, pipeline protection, pipeline damage/wear prevention, etc., can solve problems such as blocked pipelines, prevent pipeline deformation, ensure fatigue performance, reduce probability and investment Effect

Inactive Publication Date: 2021-02-09
CHINA FIRST METALLURGICAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve the above problems in the present situation, and provide a steel pipe connection structure and construction method for compensating for uneven settlement, that is, use high-strength metal glue to bond the steel bellows compensator and the flexible lining, and use steel Good axial strain and three-dimensional rotational micro-deformation of high-quality corrugated pipes can improve the problem of defects or leakage at the joints of steel pipes caused by uneven settlement of the foundation. The use of flexible linings can reduce water flow resistance and isolate steel corrugations Corrosion damage caused by the contact between the pipe and the sewage, avoiding the occurrence of waste clogging the pipe, etc.

Method used

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  • Steel pipe connecting structure for compensating differential settlement and construction method
  • Steel pipe connecting structure for compensating differential settlement and construction method
  • Steel pipe connecting structure for compensating differential settlement and construction method

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Embodiment 1

[0028] The embodiment of the present application provides a steel pipe connection structure that compensates for uneven settlement, such as figure 1 with 2 As shown, it includes steel pipes 5 at both ends and a steel corrugated pipe connected between the steel pipes 5 at both ends. The steel corrugated pipe is provided with a liner, and the liner is a flexible lining 2. The end of the lining pipe is bonded to the steel bellows through high-strength metal glue 4 . In the above-mentioned embodiment, the steel bellows and the inner liner are composed of a combined sleeve, wherein the steel bellows adopts C-shaped steel bellows 1, and the material is high-quality carbon steel with high elasticity and high strength. The selected steel bellows The pipe 1 compensator has the functions of compression resistance, bending resistance and corrosion resistance. It adopts the sleeve form of the flexible lining 2 and the bellows compensator to avoid the resistance and blockage of the inner ...

Embodiment 2

[0036] This embodiment provides a connection structure for steel pipes connected to well-shaped structures to resist uneven settlement, such as Figure 3-4 As shown, the difference from the above embodiment is that one end of the steel corrugated pipe is connected to the steel pipe, and the other end is connected to the well-shaped structure 8, wherein the embedded water-stop casing 6 is connected to the well-shaped structure 8 .

[0037] Its specific construction method is as follows:

[0038] Step 1: Prefabrication of the steel bellows combination device: combine the flexible lining 2 with the steel bellows in advance, apply high-strength metal glue 4 evenly on the contact surface and install the sealing ring 3 on the inner side to prevent liquid from leaking from the contact surface gap ;

[0039] Step 2: Pre-embed the water-stop casing 6 when making the well-shaped structure, and reserve a corrugated pipe placement point at the bottom of the foundation pit before the pipe...

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Abstract

The invention discloses a steel pipe connecting structure for compensating differential settlement and a construction method. The steel pipe connecting structure for compensating differential settlement comprises a steel pipe and other pipes connected with the steel pipe, wherein a steel corrugated pipe is arranged between the steel pipe and the other pipes, a lining pipe is arranged in the steelcorrugated pipe and is a flexible lining, and the end of the lining pipe is bonded with the steel corrugated pipe through high-strength metal glue. The steel corrugated pipe compensator and the flexible lining are bonded through the high-strength metal glue, the problem of defects or leakage at the steel pipe connecting position caused by differential settlement of a foundation is solved through good axial strain and three-dimensional rotation micro-deformation of the steel corrugated pipe, the flexible lining is used, water flow resistance can be reduced, corrosion damage caused by contact ofthe steel corrugated pipe and sewage is isolated, and the situation that waste blocks the pipes is avoided.

Description

technical field [0001] The invention relates to the technical field of construction of municipal water supply and drainage pipelines, in particular to a steel pipe connection structure and a construction method for compensating uneven settlement. Background technique [0002] When laying pipelines in areas with complex geological conditions, settlement is prone to occur due to changes in geological conditions, precipitation and external loads. For buried steel pipes, the pipes are mainly cast iron pipes, and most of them are pressure pipes. The steel pipes are welded, and the deformation of the weld seam itself is small. When the foundation subsides, especially uneven settlement, it will cause cracks, distortions, fractures, and fatigue damage of the steel pipe welds, and the leakage of the water supply and drainage pipes will seriously affect the geological conditions, thereby accelerating the foundation settlement and forming subsidence or pits The hole will cause inconve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/03F16L57/02F16L57/00
CPCF16L51/03F16L57/02F16L57/00
Inventor 吴元昌郑辉田红云林惠凤王阳
Owner CHINA FIRST METALLURGICAL GROUP
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