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Water stopping method for steel pipe pile fore shaft

A technology for steel pipe piles and water-stopping, which is applied to sheet pile walls, buildings, infrastructure projects, etc., can solve the problems of poor water-stopping effect of locks, etc., and achieve the effect of good water-stopping effect and better water-stopping effect.

Inactive Publication Date: 2021-01-12
1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a water-stopping method for the lock of steel pipe piles to solve the problem of using bentonite, expansion agent, cement slurry mixture, etc. in the related art to seal the lock by wrapping plastic tubes or canvas tubes. The problem of poor water effect

Method used

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  • Water stopping method for steel pipe pile fore shaft
  • Water stopping method for steel pipe pile fore shaft
  • Water stopping method for steel pipe pile fore shaft

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The embodiment of the present invention provides a water-stopping method for the lock of steel pipe piles, which can solve the problem of using bentonite, expansion agent, cement slurry mixture, etc. in the related art, and wrapping the lock with plastic or canvas tubes. The problem of poor water stop effect.

[0025] see figure 1 As...

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Abstract

The invention discloses a water stopping method for a steel pipe pile fore shaft. The water stopping method comprises the following steps that a phosphoric acid solution and a water glass solution areinjected into the bottom of the fore shaft at the same time through a drill rod, and a grout stopping layer is formed; and cement paste and the water glass solution are injected into the area above the grout stopping layer of the fore shaft through the drill rod at the same time for plugging. According to the water stopping method for the steel pipe pile fore shaft, the diffusion speed and distance of grout in water can be effectively controlled, it is guaranteed that a water flowing channel is rapidly blocked under the condition that water flows, and therefore the water stopping effect is good, grouting can go deep into the bottom of the fore shaft through the drill rod, saturated grouting is conducted from bottom to top, and water stop effect is better.

Description

technical field [0001] The invention relates to the field of cofferdam construction of steel pipe piles at locks in water areas, in particular to a water-stopping method for steel pipe pile locks. Background technique [0002] With the development of my country's engineering construction field, the construction technology of interlock steel pipe pile cofferdam has been applied and promoted to a certain extent. The lock cofferdam has the advantages of fast construction speed, high cofferdam rigidity, and multiple turnover of steel pipe columns, but the water stop problem at the lock is still an important factor restricting its technical promotion. [0003] In the related technology, when the interlocking steel pipe pile cofferdam is usually constructed in the water area project, it is necessary to build a construction platform on the outside of the interlocking steel pipe pile cofferdam, using bentonite, expansion agent, cement slurry mixture, etc., through plastic pipes or c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04E02D15/06E02D19/16E02D19/18E02D5/08
CPCE02D5/08E02D15/06E02D19/04E02D19/16E02D19/18E02D2250/003E02D2250/0076
Inventor 吴秉湖代毅周功建韩胜利耿克强赵发亮王朋刘伟勃张炎培魏博周一林李瑞茂
Owner 1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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