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Tool and method for detecting sealing performance of water stop capsules for bearing platform construction

A water-stop capsule and sealing performance technology, which is applied in the direction of liquid-tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, etc., can solve the problems that do not involve the sealing performance test tooling of the water-stop capsule, etc.

Active Publication Date: 2016-07-06
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

None of the above existing technologies involves the sealing performance testing tooling and testing methods of the water-stopping capsule used for platform cap construction.

Method used

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  • Tool and method for detecting sealing performance of water stop capsules for bearing platform construction
  • Tool and method for detecting sealing performance of water stop capsules for bearing platform construction
  • Tool and method for detecting sealing performance of water stop capsules for bearing platform construction

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Embodiment Construction

[0033] Cofferdam is an indispensable water retaining structure in the foundation construction of bridges in water. According to different materials, it can be divided into: earth-rock cofferdam, concrete cofferdam and steel cofferdam; according to different usage methods, it can be divided into box cofferdam and hanging box cofferdam. The hanging box cofferdam is equipped with a bottom plate, and the cofferdam is not in contact with the river bed, and is often used in the construction of high pile caps; the box cofferdam is not equipped with a bottom plate, and its bottom is buried at a certain depth below the river bed surface, and is fixed by the foundation, and is often used in low pile caps Abutment construction. The water-stop capsule is a rubber product with a capsule-shaped structure and ring-shaped seal. The rubber layer is equipped with a skeleton to enhance the internal pressure of the water-stop capsule; the outside is equipped with an air nozzle through which air o...

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Abstract

The invention discloses a tool and method for detecting sealing performance of water stop capsules for bearing platform construction. The tool for detecting sealing performance of water stop capsules for bearing platforms comprises an inner steel sleeve, an outer steel sleeve, an adjusting bolt, an extensible air pipe, an inlet end pressure gauge, an extensible water pipe, and a water inlet end pressure gauge; a space is kept between the inner steel sleeve and the outer steel sleeve; the inner steel sleeve and the outer steel sleeve are connected through the adjusting bolt; the extensible air pipe and the extensible water pipe are both connected to the outer steel sleeve. The detecting method comprises following steps: installing the water stop capsule; detecting the sealing performance of the device; detecting the air-tightness and sealing performance of the water stop capsule; performing eccentric detection. By means of the tool and method, not only sealing performance of water stop capsule with large diameter can be detected, but also the air pressure inside the water stop capsule can be determined and detected in real time as the judgment basis and experience results for sealing effect of the water stop capsule through the air inlet device which is connected to the outer part of the water stop capsule and the water inlet device which is connected to the outer steel sleeve.

Description

technical field [0001] The invention relates to a technology for detecting the sealing performance between a cap and a steel pipe pile in the construction of a deep-water cofferdam, and in particular designs a tool for detecting the sealing performance of a large-diameter water-tight capsule used in the construction of a cap. Background technique [0002] The construction of long-span bridges between large rivers and straits has become a trend in bridge construction. Usually, the bridge layout has main piers in water, and high pile caps of pile group foundations in water are widely used. The cofferdam is used as the surrounding water structure of the cap platform in the water. The pile foundation is installed in the later stage of construction, and the water is pumped after the bottom sealing or water sealing is sealed, so as to provide a "dry environment" for the cap platform construction. [0003] Cofferdam is an indispensable water retaining structure in the foundation co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M3/28
Inventor 罗勇欢丁泽郝磊姚勇姜炼冯正林刘军邱商宁响亮郭红锋
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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