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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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 testing tool and a testing method for the sealing performance of a water-stop capsule used in the construction of a platform. Water-stop capsule sealing performance testing tool for platform construction, including inner steel sleeve, outer steel sleeve, adjusting bolt, extendable air pipe, pressure gauge at the inlet end, extendable water pipe, pressure gauge at the water inlet end; inner steel sleeve There is a gap between the inner steel sleeve and the outer steel sleeve; the inner steel sleeve and the outer steel sleeve are connected by adjusting bolts; the extendable air pipe and the extendable water pipe are connected to the outer steel sleeve. The detection method includes: installing the water-stop capsule; testing the airtightness of the device; testing the air-tightness and sealing performance of the water-stop capsule; and detecting eccentricity. The invention can not only detect the sealing performance of the large-diameter water-stop capsule, but also can monitor the internal air pressure of the water-stop capsule in real time through the air inlet device connected to the outside of the water-stop capsule and the water inlet device connected to the outer steel sleeve. Judgment and detection can be used as the judgment basis and empirical results of the sealing effect of the water-stop capsule.

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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