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Reinforcement cage quick-assembling positioning system

A technology of positioning system and steel cage, which is applied in the direction of erecting/assembling bridges, sheet pile walls, bridges, etc. It can solve the problems of prolonged pile-forming time, self-heavy reinforcement cage, and difficult operation, so as to save pile-forming cycle and installation time The effect of short, high-quality joints

Inactive Publication Date: 2009-01-07
THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The conventional method on site is to use two shaped steel shoulder poles to rest on the drilling platform to hang the reinforcement cage in the lower section, and carry out the butt joint construction of the reinforcement cage joints. This method is suitable for small-diameter bored piles. Major, the required section steel pole is also correspondingly large, the operation is more difficult, and because the operation lasts for a long time, the drilling slag in the hole is precipitated again, which increases the difficulty of secondary hole cleaning, and the pile-forming time is relatively prolonged
For areas with poor geological conditions, it is even possible that the hole wall collapses seriously due to the long interval between hole cleaning and underwater concrete pouring, and it is necessary to take out the newly installed reinforcement cage and clean the holes again, which seriously affects the pile-forming cycle

Method used

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  • Reinforcement cage quick-assembling positioning system
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Examples

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Effect test

Embodiment

[0017] The φ2.8m bored pile of the main bridge of a certain bridge, the total length of the reinforcement cage is 110m, the total weight is 90t, the upper part of the reinforcement cage is designed as a double row of main reinforcement, and each layer has 136 φ40 grade II reinforcement; the lower part is a single row of main reinforcement , each layer has 68 φ40II grade steel bars. During the construction, the installation site is divided into 10 sections. Using this rapid installation system, the reinforcement cage of a pile can be put in place within 24 hours at the fastest, and the average installation time of the reinforcement cage is 30 hours.

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Abstract

The invention relates to a reinforcing cage rapid assembling and positioning system, which comprises a drilling platform, a reinforcing cage main reinforcement, a reinforcing cage hoop, reinforcing cage main reinforcement connectors, a end fixing ring, a end fixing ring splicing plate, end fixing ring movable inserting plates, a end fixing ring movable inserting plate pin, a drilling pile steel sleeve, a packing block, an operation platform, an operation platform scaffold board and an operation platform safety cable. The system has the advantages that two hemicyclic steel rings are spliced into the end fixing ring, and the assembling labor intensity of the end fixing ring is reduced; a reinforcing cage in the lower layer is hung by adopting eight movable inserting plates uniformly arranged on the end fixing ring, thereby the expansion of the tip beating ring is easily realized; the main reinforcement connectors in the upper and in the lower layers can be simultaneously spliced by adopting a double layered platform; the whole system has the advantages of reasonable loading, high connector quality, high construction efficiency, low labor intensity, short pile-forming period and low construction cost, and is particularly applied to the rapid assembling of the long pile reinforcing cage with double layered main reinforcement and large diameter.

Description

technical field [0001] The invention relates to a fast assembling and positioning system for a reinforcement cage. The utility model is particularly suitable for the assembly and positioning of a large-diameter long pile reinforcement cage with double-layer main reinforcement, and belongs to the technical field of building construction. Background technique [0002] At present, bored cast-in-situ pile foundations are often used for large-scale bridges in deep water, and have the characteristics of large pile diameter and long pile body. The reinforcement cage of the pile foundation cannot be installed in the whole section because of its too long length. Generally, it is manufactured in sections. After the drilling is completed, Lifting, vertical docking and lowering at the hole position one by one to complete the installation. The conventional method on site is to use two shaped steel shoulder poles on the drilling platform to hang the reinforcement cage of the lower sectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E01D21/00
Inventor 袁先留程晨崔巍许新民于政权季袁飞王元利黄文海吴文龙
Owner THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG GRP
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