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An update method for trenchless bendable pipelines

An update method, non-excavation technology, applied in the direction of pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems that the pipeline does not meet the design and use requirements, and cannot realize the bending along with the bend, etc., to achieve Effects of improving adaptability and convenience and reducing construction equipment costs

Active Publication Date: 2018-10-02
天津倚通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing non-excavation pipeline repair method can only be wound into the original pipeline to form a straight pipe, and cannot follow the bend, so the inner diameter can only be sacrificed as a price, resulting in the repaired pipeline not meeting the original design and use requirements

Method used

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  • An update method for trenchless bendable pipelines
  • An update method for trenchless bendable pipelines
  • An update method for trenchless bendable pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for updating a non-excavation bendable pipeline, which includes the following steps:

[0046] 1). Install a spiral new pipeline in the old underground pipeline or culvert that needs to be repaired. The new spiral pipeline is wound into a spiral shape by using a bendable strip profile 4 through a follow-up spiral winding machine;

[0047] 2). Pour mortar between the old underground pipe and the new spiral pipe.

[0048] Such as figure 1 As shown in , the bendable strip profile is composed of a profile body 28, a lock slot 25, a lock head 31, a reinforcing rib 27, and a bending portion 29, and an upwardly convex lock is formed on one end of the profile body in the width direction. The other end in the width direction of the profile body is formed with an upwardly protruding locking clip, and the middle part of the profile body is formed with an upwardly protruding reinforcing rib. The lock card slots are two side by side lock card slots, and the lock card heads...

Embodiment 2

[0055] Such as Figure 6 , 7 shown. The follow-up spiral winding machine can be a follow-up winding machine with a guide rail. The structure of the follow-up winding machine with a guide rail is: including a support guide rail 32, a roller chain ring 33 with a guide wheel and a drive assembly, and a roller chain with a guide wheel. The ring is composed of multiple chain roller units connected end to end to form a ring. The chain roller unit is mainly composed of chain roller 5, chain link 6, guide wheel 36 and guide wheel frame 34. The chain links are hinged symmetrically on both radial sides of the chain roller. These two chain link bottoms are hinged guide wheel frame, and guide wheel frame bottom is installed guide wheel by guide wheel axle 35. The bottom of the guide wheel frame is equipped with two guide wheels symmetrically through the guide wheel axis. The inner sides of the two guide wheels are rolled on the guide rail. The guide rail is a plate guide rail. Since th...

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Abstract

The invention relates to a non-excavation turnable pipe updating method. The method is characterized by comprising the following steps: 1) a new spiral pipe is arranged in an old underground pipe or culvert needing to be repaired, and is spirally wound by a turnable strip-shaped profile through a follow-up spiral winding machine; and 2) mortar is grouted between the old underground pipe and the new spiral pipe. The method is scientific and reasonable in structural design, can perform long-distance repair for pipes under non-excavation conditions, and can realize molding of turnable pipes.

Description

technical field [0001] The invention belongs to a method for updating and repairing a pipeline, in particular to a method for updating a non-excavation bendable pipeline. Background technique [0002] Urban drainage pipes are called the "underground lifeline" of the city, which shoulders the important task of urban sewage and waterlogging. As the scale of urban construction in my country continues to expand, more and more attention has been paid to the maintenance and repair of drainage pipes. The traditional method of pipeline repair is to use excavation to replace new pipelines, which results in a huge amount of work and high cost, and the project cannot be completed in a short period of time, which will lead to traffic jams, environmental pollution, etc., which are unbearable for modern urban construction. of. [0003] Trenchless repair technology is an engineering technology that uses trenchless or micro-excavation technology to partially or integrally repair damaged u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/038F16L1/06
CPCF16L1/038F16L1/06
Inventor 王刚杨心宇王卓其他发明人请求不公开姓名
Owner 天津倚通科技发展有限公司
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