A kind of protection pile and construction method

A construction method and a technology of retaining piles, which are applied in excavation, sheet pile walls, foundation structure engineering, etc., can solve the problems of reducing construction efficiency and achieve the effects of improving construction efficiency, avoiding pile breakage, and easy quality assurance

Active Publication Date: 2016-08-17
JINAN RAILWAY TRANSPORT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the anchor shotcrete support is used in conjunction with the cast-in-situ pile, the bolt construction is easy to intersect with the excavation of the foundation pit, which reduces the construction efficiency

Method used

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  • A kind of protection pile and construction method
  • A kind of protection pile and construction method
  • A kind of protection pile and construction method

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Experimental program
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Embodiment Construction

[0031] The present invention is described in detail below in conjunction with accompanying drawing:

[0032] Such as Figure 1-6 As shown, a kind of enclosure pile includes an open prefabricated pipe pile 3, a steel cage is provided in the inner cavity of the open prefabricated pipe pile 3 and the part extending outward from the opening side, and the steel bar Concrete 9 is poured in the cage. The opening-type prefabricated pipe piles have a fast pressing speed, and the achieved support effect can allow the excavation of the foundation pit to a certain depth, so the excavation of the foundation pit soil can be realized as soon as possible. During the excavation process of foundation pit soil, the post-concrete 9 of construction enclosure piles strengthens the support effect of enclosure piles and allows deeper excavation of foundation pits, so the overall construction efficiency is improved.

[0033] The cross section of the open prefabricated pipe pile 3 is circular or poly...

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PUM

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Abstract

The invention discloses an enclosure pile and a construction method. The enclosure pile comprises an open type precast pile, a steel reinforcement cage is arranged on the inner cavity and a portion extending outwards from an open side, and concrete is cast into the steel reinforcement cage. The construction method includes the steps: firstly, drilling in a profile of the precast pile; secondly, pressing the open type precast pile into a hole drilled in the first step; thirdly, drilling on the ground of an open side of the precast pile to form a vertical hole with a small middle and large ends; fourthly, placing down the bundled steel reinforcement cage in the hole formed in the third step and the open type precast pile; fifthly, casting the concrete in the steel reinforcement cage, and finishing construction. The enclosure pile has the advantages that the enclosure pile is large in bearing capacity, high in construction efficiency and reliable in quality, excavation cannot be affected and the like.

Description

technical field [0001] The invention relates to a building component, in particular to an enclosure pile and a construction method. Background technique [0002] At present, the foundation pit enclosure structure mainly includes sheet pile type, column type, underground diaphragm wall, self-supporting cement-soil retaining wall, combined type, etc. Among them, the column type enclosure structure is the most widely used, with bored piles, The hole-digging pile is a specific form of expression, and it is often used in conjunction with anchoring and spraying support. Although the construction speed of the bored pile is fast, the pile is easy to break, which has a great impact on the surrounding environment, the quality of the pile is difficult to guarantee, and the bearing capacity is not good. Although the hole-digging cast-in-situ piles have good pile quality, the construction speed is slow and the construction risk is high. When the anchor shotcrete support is used in conj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/58E02D17/04
Inventor 王国富
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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