Pre-tensioning-method prestressed centrifugally-formed precast high-strength concrete hollow I-shaped support pile

A high-strength concrete, centrifugal forming technology, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of high engineering cost, poor quality and safety controllability, waste of resources, etc. Good social benefits and the effect of saving construction costs

Pending Publication Date: 2016-11-09
TIANJIN JIANCHENGJIYE GRP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of construction technology and geological structure, the above support forms are likely to cause insufficient hole-forming grouting, force of soil nails or anchors that cannot meet the design requirements, insufficient thickness of sprayed silicon, and insufficient strength to meet the design requirements. The difference from the design is too large, the difference between the design and the actual situation is large, the project cost is high, the construction period is long, the quality and safety controllability is poor, the safety factor is low, resources are wasted, and the construction has a large impact on the surrounding environment.
Especially in the support of soft soil foundation and deep foundation pit, the above-mentioned defects are particularly prominent, and in some areas, it is impossible to construct at all.

Method used

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  • Pre-tensioning-method prestressed centrifugally-formed precast high-strength concrete hollow I-shaped support pile
  • Pre-tensioning-method prestressed centrifugally-formed precast high-strength concrete hollow I-shaped support pile
  • Pre-tensioning-method prestressed centrifugally-formed precast high-strength concrete hollow I-shaped support pile

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[0018] With reference to the accompanying drawings, a pre-tensioned pre-stressed centrifugal forming high-strength concrete prefabricated hollow I-shaped supporting pile of the present invention will be described.

[0019] The tensioning prestressed centrifugal forming high-strength concrete prefabricated hollow I-shaped supporting piles of the present invention are composed of several piles 1 arranged in close proximity and implanted in the lower section or pressed into the ground. The structure of the pile 1 is: longitudinally from the end to the end Water-stop grooves are arranged symmetrically; the number of water-stop grooves on each side is one (the shape of the water-stop groove is rectangular 2 and trapezoidal 2'); the water-stop holes of two adjacent piles 1 are combined into one (water-stop The hole shape is rectangular 3 and ladder 3'). The column is filled with cement slurry 4; after the cement slurry is hardened and solidified, the precast concrete piles are cemented and

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Abstract

The invention provides a pre-tensioning-method prestressed centrifugally-formed precast high-strength concrete hollow I-shaped support pile. The pile is formed by arranging multiple pile bodies in an adjacent manner and embedding or pressing lower sections underground; each pile body adopts such a structure that water stop grooves are longitudinally symmetrically formed from the tip to the tail and one water stop groove (in the rectangular or trapezoidal shape) is formed in each side; a water stop hole column formed by combining two water stop grooves of every two adjacent pile bodies is filled with cement paste; and after the cement paste is hardened and set, precast concrete piles are bonded and linked into a whole in a gluing manner so as to form a complete soil blockage and water stop structure. The construction cost is very low, the perpendicularity of the pile bodies is guaranteed, the pile bodies is high in bulge strength and not prone to breakage, precast square pile molds is simple and easy to clean, the quality is reliable, and the safety is high.

Description

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Claims

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Application Information

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Owner TIANJIN JIANCHENGJIYE GRP
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