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Non-excavation painting type inspection well repairing method

A repair method and a technology for inspecting wells, which are applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of unsatisfactory corrosion resistance, long construction period, and high construction cost, and achieve the benefits of resource reuse and small size changes Effect

Inactive Publication Date: 2019-10-25
上海管丽建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the repair of municipal inspection wells basically used large-scale renovation and repair to replace the damaged section of the pipeline. The construction period was 5-7 days. Today, the urban traffic pressure is becoming increasingly severe, and the excavation and repair with a long construction period cannot be concealed in the city. Requirements for rapid repair construction of inspection wells
The inspection well is reinforced and repaired by grouting, and the construction period is about 3 days, and the construction period is also long, and it cannot meet the requirements of corrosion resistance. While strengthening and repairing, the construction period is shortened and the corrosion resistance requirements of inspection wells are met, but the construction cost is relatively high

Method used

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  • Non-excavation painting type inspection well repairing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A non-excavation smear type inspection well repair method, the method includes the following steps:

[0039] The first step, on-site investigation: confirm the structure of the existing inspection well;

[0040] The second step, well wall pretreatment: use high-pressure water for internal flushing, remove the protruding stones and impurities on the surface, and fill the original cracks and leakage points; for crack filling, fast cement (plugging king) can be used. Rapid cement can be used to block the leakage point and a diversion tube is reserved, and polyurethane is injected into the diversion tube.

[0041] The third step is to apply interface agent on the surface: apply the adhesive material evenly on the surface of the well wall according to the designed thickness without falling off;

[0042] The fourth step, surface adjustment: Stir the surface adjustment material evenly, and fill it into the unevenness such as pits on the well wall to make the surface flat;

...

Embodiment 2

[0054]A non-excavation smear type inspection well repair method, the method includes the following steps:

[0055] The first step, on-site investigation: confirm the structure of the existing inspection well;

[0056] The second step, well wall pretreatment: use high-pressure water for internal flushing, remove the protruding stones and impurities on the surface, and fill the original cracks and leakage points;

[0057] The third step is to apply interface agent on the surface: apply the adhesive material evenly on the surface of the well wall according to the designed thickness without falling off;

[0058] The fourth step, surface adjustment: Stir the surface adjustment material evenly, and fill it into the unevenness such as pits on the well wall to make the surface flat;

[0059] The fifth step, section reinforcement work: Stir the section reinforcement material evenly, and use tools to paint according to the design thickness requirements;

[0060] The sixth step, surfac...

Embodiment 3

[0067] A non-excavation smear type inspection well repair method, the method includes the following steps:

[0068] The first step, on-site investigation: confirm the structure of the existing inspection well;

[0069] The second step, well wall pretreatment: use high-pressure water for internal flushing, remove the protruding stones and impurities on the surface, and fill the original cracks and leakage points;

[0070] The third step is to apply interface agent on the surface: apply the adhesive material evenly on the surface of the well wall according to the designed thickness without falling off;

[0071] The fourth step, surface adjustment: Stir the surface adjustment material evenly, and fill it into the unevenness such as pits on the well wall to make the surface flat;

[0072] The fifth step, section reinforcement work: Stir the section reinforcement material evenly, and use tools to paint according to the design thickness requirements;

[0073] The sixth step, surfa...

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Abstract

The invention discloses a non-excavation painting type inspection well repairing method. The method comprises the steps of field investigation, wherein an existing inspection well is subjected to structure confirmation; well wall pretreatment, wherein high-pressure water is adopted for carrying out interior flushing, and stone and impurities protruding out of the surface can be removed; bonding agent surface painting, wherein according to the design thickness, the adhesive material is evenly sprayed to the well wall surface, and does not fall off; surface adjusting, wherein the surface adjusting material is evenly stirred and filled into uneven positions like well wall pits, and the surface is flat; cross section reinforcing work, wherein a section reinforcing material is evenly stirred, and according to the design thickness need, a tool is adopted for painting; and surface layer treatment, wherein the surface repairing material is stirred and mixed and evenly mixed, and the material is painted on the most surface with the thickness of 0.1 to 1 mm. Sludge incineration ash of renewable resources is used, the resources are used, the method is economic and environment-friendly, the inspection well can be repaired without excavation, and the construction period is saved.

Description

technical field [0001] The invention relates to the field of pipeline repair, in particular to a method for repairing an inspection well. Background technique [0002] The inspection well is set up for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, and street lamp lines, and is convenient for installation. It is generally installed at the intersection of pipelines, turning places, pipe diameter or slope changes, and at certain distances on straight pipe sections, which is convenient for regular inspection of ancillary structures. [0003] Inspection wells that have been used for a long time will have leakage, cracking, corrosion and other diseases, and necessary repairs are required. In the past, the repair of municipal inspection wells basically used large-scale renovation and repair to replace the damaged section of the pipeline, and the construction period was 5-7 day...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/12
CPCE02D29/128
Inventor 孙跃平孙大为杨后军孙千惠
Owner 上海管丽建设工程有限公司
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