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Water stopping material for steel pipe pile cofferdam buckle

A technology of water-stop material and steel pipe pile, which is applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of poor water-stop effect and difficult removal in the later stage, and achieves low strength, excellent water-stop effect, and a wide range of sources. Effect

Active Publication Date: 2019-02-22
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of poor water-stop effect and difficult cleaning in the later stage of existing steel sheet pile cofferdam locking water-stopping materials, and propose a water-stopping material for steel pipe pile cofferdam locking; The water material is made by mixing aggregate, expanded clay and reinforcing materials in a specific ratio. It is used for the lock of the steel sheet pile cofferdam. Small cohesion, low strength, easy and quick removal in the later stage; at the same time, the source of raw materials is wide and the cost is low, suitable for large-scale application in the construction industry

Method used

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  • Water stopping material for steel pipe pile cofferdam buckle

Examples

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Effect test

Embodiment 1

[0019] A water-stop material, prepared by mixing the following raw materials by weight: 100 parts of medium-coarse sand with a particle size of 4.75 mm, 10 parts of expansive soil, 3.3 parts of a saw with an aspect ratio of 2:1 and a diameter of 1.5 mm. sawdust.

Embodiment 2

[0021] A water-stopping material prepared by mixing the following raw materials in parts by weight: 90 parts of stone powder with a particle diameter of 2 mm, 11 parts of bentonite, and 3 parts of straw powder with an aspect ratio of 2:1 and a diameter of 2 mm.

Embodiment 3

[0023] A water-stop material is prepared by mixing the following raw materials in parts by weight: 110 parts of coarse sand with a particle diameter of 6 mm, 9 parts of expansive soil, and 4 parts of bagasse with an aspect ratio of 5:1 and a diameter of 0.5 mm.

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Abstract

The invention discloses a water stopping material for a steel pipe pile cofferdam buckle. The water stopping material comprises the following raw materials of, by weight, 90-110 parts of aggregate, 9-11 parts of expanded clay and 3-4 parts of a reinforcing material. The water stopping material is formed by mixing the aggregate, the expanded clay and the reinforcing material at a specific ratio, isused for the steel sheet pile cofferdam buckle, and has excellent water stopping effect, water seepage is not prone to occurring, application is convenient, the adhesiveness with the buckle is weak,the strength is low, and the water stopping material is easy and quick to remove in the later stage; and meanwhile, the raw materials are wide in source and low in cost is low, and the suitable waterstopping material is suitable for wide application in the construction industry.

Description

technical field [0001] The invention relates to the field of bridge building materials, in particular to a water-stopping material used for locking cofferdams of steel pipe piles. Background technique [0002] With the rapid development of our country's national economy, the construction of the transportation system has been increased. A four-vertical and eight-horizontal traffic network has been initially formed. Crossing mountains, canyons, and rivers will inevitably appear. Therefore, efforts are made to innovate bridge water foundation construction technologies. appears to be particularly important. At present, the underwater foundation of bridges is mainly constructed in the form of cofferdam structure. Among them, locking steel pipe pile cofferdam is a relatively advanced cofferdam construction technology in recent years. It has a simple structure and strong operability, and has been widely used. Locking steel pipe piles are composed of steel pipes, C-shaped locks, an...

Claims

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Application Information

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IPC IPC(8): E02D31/02E02D5/28E02D19/04
CPCE02D5/285E02D19/04E02D31/02
Inventor 朱强洪李友明刘文忠彭亮英白晓红苟伟黄义何科辉周文武付双龙
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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