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Reinforcing method for wrapping water pile post by using reinforced fiber composite cloth

A composite material and reinforced fiber technology, applied in sheet pile wall, foundation structure repair, construction, etc., can solve problems such as cumbersome process, achieve the effect of low operation difficulty factor, reduced safety risk, and easy construction

Inactive Publication Date: 2010-12-29
SHANGHAI JIUJIAN REINFORCEMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the construction method of underwater wrapping without setting up cofferdams to isolate water is also adopted, the disadvantage is that it is still necessary to set up an isolation body outside the fiber reinforced composite grid reinforcement, and to seal the isolation body with underwater concrete. Pouring underwater epoxy resin or underwater non-dispersible mortar or underwater non-dispersible concrete between the body and the pile, the process is still cumbersome

Method used

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  • Reinforcing method for wrapping water pile post by using reinforced fiber composite cloth
  • Reinforcing method for wrapping water pile post by using reinforced fiber composite cloth
  • Reinforcing method for wrapping water pile post by using reinforced fiber composite cloth

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specific Embodiment 1

[0023] Such as figure 1 As shown, there is a damaged part 5 on the pile body below the water level 4, and it is repaired. First use underwater epoxy repair mortar to restore the original section size of the problematic pile; then wrap it with reinforced fiber composite material cloth 1 to make up for the possible decrease in the strength of the vertical steel bar 6 due to corrosion; this composite fiber material cloth is a flexible weave during construction Cloth, after being cured under water, becomes a tough plate-like material with good erosion and corrosion resistance. Reinforced composite material cloth 1 wrapping form: it is pure composite material cloth 1 wrapping, the texture is wrapped along the longitudinal direction, mainly compensating for the strength loss of the vertical reinforcement 6. The form and quantity of packages are constructed according to the design requirements. The height of the package must exceed the range of pile defect 5. Of course, underwater...

specific Embodiment 2

[0031] Further improvement is made on the basis of the above scheme, and this embodiment shows that the invention also has repairing and protecting effects on the damage of the stirrups. First use underwater epoxy repair mortar to restore the original section size of the problematic pile; then wrap it with reinforced fiber composite material cloth 1 to make up for the possible strength drop of the stirrup 7 due to corrosion; this composite fiber material cloth is a flexible woven cloth during construction , After being solidified underwater, it becomes a tough plate material with good erosion and corrosion resistance. Reinforced composite material cloth wrapping form: Wrap the surrounding composite material cloth on the periphery of the composite material cloth. The bounding composite material cloth is in the form of a long strip with a narrow width, and the texture is wrapped horizontally to mainly compensate for the strength loss of the stirrup. The number of parcels shall b...

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PUM

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Abstract

The invention relates to a reinforcing method, in particular to a reinforcing method for wrapping a water pile post by using reinforced fiber composite cloth, namely maintaining and reinforcing an underwater pile post body of a water building such as a bridge or a dock or the like by adopting underwater direct reinforcing without building a cofferdam to separate water. The method comprises the following steps of: recovering the sectional dimension of a primary defective pile post by using underwater epoxy repair mortar, and then wrapping the pile post by using the reinforced fiber composite cloth, wherein the composite fiber cloth is flexible woven cloth during construction, becomes a hard board material after being reinforced underwater and has good scouring resistance and anticorrosion function. The wrapping height exceeds the defect effect of the pile post. The water pile post body is directly wrapped by adopting the reinforced fiber composite cloth and other treatment measures are not adopted, so the method can meet the requirements of design and use.

Description

technical field [0001] The invention relates to the maintenance and reinforcement of underwater pile bodies of underwater structures such as bridges and wharves. It does not need to lay cofferdams to isolate water, and can adopt a method of direct underwater reinforcement. Background technique [0002] In the field of construction, the traditional reinforcement method for the pile body in the water is as follows: first set up a cofferdam to isolate the water, the cofferdam mostly uses a steel casing, and seals the bottom with concrete; then pumps out the water in the casing, and then repairs and strengthens the pile body . Traditional methods are labor-intensive, time-consuming, and expensive, and there are certain difficulties and security risks. [0003] At present, the reinforcement method close to the present invention is to use fiber-reinforced composite material grid bars to reinforce underwater structures, which is an invention patent applied by Beijing Texida Techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D37/00E02D5/22
Inventor 宋志远
Owner SHANGHAI JIUJIAN REINFORCEMENT TECH