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Underground concrete pouring construction technology based on double guide tubes and four hoppers

A technology of underwater concrete and construction technology, applied in the direction of infrastructure engineering, construction, etc., to achieve the effect of solving quality problems

Active Publication Date: 2014-09-10
SCEGC MECHANIZED CONSTR GRP COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an underwater concrete pouring construction technology based on double conduits and four hoppers. The quality of the pile body is intact, and the work efficiency is improved at the same time

Method used

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  • Underground concrete pouring construction technology based on double guide tubes and four hoppers
  • Underground concrete pouring construction technology based on double guide tubes and four hoppers
  • Underground concrete pouring construction technology based on double guide tubes and four hoppers

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specific Embodiment

[0056]The "anti-slide pile project in the west area of ​​Yanneng Huachangping Project in Fuxian County, Shaanxi Province" was constructed in August 2012, and a total of 7 slope anti-slide piles in the first phase and 16 trench mouths in the second phase were poured using "double conduits and four hoppers". The anti-slide piles have a cross-section of 3m×4m, the buried depth of the lower part of the pile is 16m-32m, and the deepest water in the hole is 20m, which successfully overcomes the difficulty of underwater injection of large-section square piles. The pouring of all underwater piles was completed at the end of June 2013. After testing, the pile body structure is complete, and the integrity category is Class I piles.

[0057] List of construction technology applications

[0058]

[0059] To sum up, the construction process of "double conduits and four hoppers" greatly improves the construction progress, saves more than 60 days of construction period, completes the stag...

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Abstract

The invention discloses an underground concrete pouring construction technology based on double guide tubes and four hoppers. The underground concrete pouring construction technology based on the double guide tubes and the four hoppers comprises the following steps that (1) an operation platform is erected above a pile body; (2) two guide tube supporting beams are installed; (3) the two guide tubes are installed on the two guide tube supporting beams respectively; (4) the two lower hoppers are connected with the two guide tubes; (5) the two upper hoppers are lifted to the positions over the two lower hoppers respectively; (6) concrete is pumped into the four hoppers; (7) the lower hoppers start to discharge concrete; (8) when one second of the concrete in the lower hoppers is discharged, the upper hoppers start to discharge concrete; (9) the concrete continues to be pumped into the lower hoppers, concrete is poured continuously underground until underground concrete construction of the pipe body is ended. According to the underground concrete pouring construction technology based on the double guide tubes and the four hoppers, the method for continuously pouring concrete based on the double guide tubes and the four hoppers in a one-off mode is adopted, and the problem that the quality of underground concrete pouring on a large-area large-section pile body is poor is solved.

Description

【Technical field】 [0001] The invention relates to the field of pile foundation engineering of civil engineering, in particular to an underwater concrete pouring construction technology based on double conduits and four hoppers. 【Background technique】 [0002] In order to save land for the construction of green cities, some airports and chemical projects are constructed in mountainous areas, which need to cut mountains and fill ditches. There are more and more high-filling projects, and the structure of mountain retaining walls is getting bigger and bigger. Anti-slide piles for slope stabilization are in It is very important in the management of geological disasters. The section and depth of anti-sliding piles, the main structure of the high-fill retaining wall, increase accordingly, and the pile length continues to deepen, which brings new challenges to the underwater pouring of pile concrete. In particular, the construction of underwater concrete pouring of rectangular lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/06
Inventor 李存良王伟王猛汪东兵赵文军郑严松
Owner SCEGC MECHANIZED CONSTR GRP COMPANY
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