Construction method for cutting and breaking reinforced concrete pile, column or ground beam

A construction method and reinforced concrete technology, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve problems such as failure to meet construction period requirements, high labor intensity, industrial accidents, etc., achieve considerable construction period benefits, improve work efficiency, reduce The effect of labor intensity

Inactive Publication Date: 2009-03-25
CHINA CONSTR SIXTH ENG DIV CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional method of pile head cutting is carried out by kicking and chiseling with picks or by hand, which is labor intensive, long working hours, and low in efficiency. poor flatness
This process has been neglected for many years, and there is no correct construction method, which ofte

Method used

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  • Construction method for cutting and breaking reinforced concrete pile, column or ground beam
  • Construction method for cutting and breaking reinforced concrete pile, column or ground beam
  • Construction method for cutting and breaking reinforced concrete pile, column or ground beam

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[0019] The present invention will be further described below in conjunction with the drawings and embodiments:

[0020] See Figure 1 to Figure 4 , The present invention is a construction method for truncated and broken reinforced concrete piles, including the following steps:

[0021] (1) Use a level, tower ruler, and steel ruler to measure the elevation of the pile that needs to be cut and broken, and mark the obvious cut position mark on the pile;

[0022] (2) Remove the concrete protective layer above the cutoff position, and peel off the main reinforcement; after removing the protective layer, the main reinforcement must not be excessively bent or cut at will;

[0023] (3) Generally, one deep hole is required as a crack hole when drilling a pile; two shallow holes are used as fracture guide holes. Drill horizontally at the cut-off position of the pile body. The depth of the expansion hole can be one-half to three-quarters of the pile diameter. If the pile head to be cut is hig...

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Abstract

The invention discloses a construction method for cutting off and breaking reinforced concrete piles, columns or ground beams. The construction method comprises the following steps: (1) the elevation of a pile/column needing to be cut off and broken or the position of a beam is actually measured, and a cutoff position is marked on the pile/column or a beam body; (2) a concrete protective layer above the cutoff position is rejected, so as to strip a main bar from concrete; (3) the cutoff position of the pile/column or the beam body is transversely provided with one deep hole and two shallow holes, wherein the deep hole is used as a swelling hole, and the two shallow holes are used as fracture guide holes; and (4) the large end of expansion iron is inserted into the swelling hole, wherein an expansion iron body is a truncated cone consisting of an A part and a B part which are separated from the middle, and a drill key is inserted in the middle of the expansion iron so as to provide power for breaking the pile/column or the beam body. The construction method has the advantages of fundamentally lightening the labor intensity of workers, obviously improving work efficiency and greatly reducing construction cost, and can meet the requirements on construction quality, construction period, safety and environmental protection.

Description

Technical field [0001] The invention relates to an engineering construction method, in particular to a construction method for cutting and breaking reinforced concrete piles, columns or ground beams. Background technique [0002] At present, in the construction of construction projects, many of the foundation divisions are in the form of pile foundations. The pile foundation form is used as the main bearing part of the building. No matter which form of pile foundation is constructed, the construction will be carried out according to the design elevation. The elevation of the pile top after construction will be higher than the design elevation by more than 600mm or even more, to prevent the concrete strength of the pile top from not meeting the design requirements and affecting the project quality and bearing requirements. Some precast piles have different elevations due to different bearing layer structures during the construction and static pressing. The elevation of the pile to...

Claims

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Application Information

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IPC IPC(8): E02D9/00
Inventor 李真郭颖高菲菲何鹏
Owner CHINA CONSTR SIXTH ENG DIV CORP
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