Method for sealing PHC pipe pile orifice through air bag

A technology of PHC pipe piles and airbags, which is applied in sheet pile walls, buildings, and foundation structure engineering, etc. It can solve the problem of insufficient contact between temporary thin steel plates and pipe openings, unsatisfactory blocking of water and soil, and large influence of sponge temperature factors, etc. problem, to achieve the effect of reducing the workload of hole cleaning, reducing the difficulty of hole cleaning, and sufficient market supply

Inactive Publication Date: 2017-04-26
SHANGHAI FOUND ENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the contact between the temporary thin steel plate and the nozzle is not tight enough, and the position of the hole is not fixed, so the effect of blocking water and soil is not ideal; if a sponge is added under the cover plate, the sponge is g

Method used

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  • Method for sealing PHC pipe pile orifice through air bag
  • Method for sealing PHC pipe pile orifice through air bag
  • Method for sealing PHC pipe pile orifice through air bag

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] PHC pipe pile aperture airbag plugging method of the present invention, concrete steps are:

[0016] First, select a suitable rubber airbag 1 (such as a bladder), put the airbag 1 into the orifice of the pipe hole 4 of the pile 3, and the trachea 2 faces upwards ( figure 1 shown);

[0017] Then use an air pump to inject air 5 into the air bag to expand its volume so that it fits closely with the pipe wall of the pipe pile 3 ( figure 2 shown), so as to block the pipe hole 4 of the pipe pile 3 and prevent water and soil from flowing into the pipe hole 4 of the pipe pile 3;

[0018] Before the concrete core is filled, deflate 6 and recover the air bag 1 ( image 3 shown).

[0019] 1 material of air bag is rubber material. The airbag 1 is placed near the orifice of the pipe hole 4 of the pipe pile 3, lower than the orifice, to prevent it from b...

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Abstract

The invention relates to a method for sealing a PHC pipe pile orifice through an air bag. The method comprises the specific steps that the air bag is placed into the pipe pile orifice at first, then, air is injected into the air bag with an inflator so that the air bag is expanded and closely attached to the pipe wall of a pipe pile, thus the pipe pile orifice is sealed, and water and soil are prevented from flowing into the pipe pile orifice; and before a core is filled with concrete, the air bag is deflated and recycled. According to the method for sealing the PHC pipe pile orifice through the air bag, the blocking and sealing performance of the air bag is good, the water and soil preventing effect is good, the follow-up workload for cleaning the orifice is decreased, the orifice cleaning difficulty is lowered, and the engineering cost is saved; the air bag is inflated during sealing and deflated before orifice cleaning, the operation difficulty is low, the speed is high, and the engineering progress is accelerated; and in addition, the air bag is sufficient in apparent availability, low in cost, resistant to corrosion relative to steel plates, sponges and other materials and capable of being recycled and reused and is an ideal green engineering material.

Description

technical field [0001] The invention relates to a method for sealing the hole of a PHC pipe pile with an air bag, in particular to a method for supplementing and perfecting the hole of a PHC pipe pile. Background technique [0002] After the PHC pipe piles are driven, measures such as thin steel plates, sponges, and sand bags are routinely used to temporarily block the openings to prevent water and soil from flowing in. Before the PHC pipe pile concrete core is filled, the debris inside the pile hole must be cleaned. If a large amount of water and soil fall into it, it will increase the workload of hole cleaning and increase the difficulty of hole cleaning. However, the contact between the temporary thin steel plate and the nozzle is not tight enough, and the position of the hole is not fixed, so the effect of blocking water and soil is not ideal; if a sponge is added under the cover plate, the sponge is greatly affected by temperature factors and is easy to rot, which is no...

Claims

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Application Information

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IPC IPC(8): E02D13/08E02D19/16
CPCE02D13/08E02D19/16
Inventor 黄磊余鹏程陈勇洪方君李政范文基
Owner SHANGHAI FOUND ENG GRP
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