Lifting cast-in-place pile head cutting device

A cutting device and cast-in-place pile technology, which is applied in the direction of sheet pile walls, buildings, foundation structure engineering, etc., to achieve the effects of simple operation, smooth cutting section and high construction efficiency

Active Publication Date: 2022-02-22
郑州宏拓电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and problems still existing in the pile head cutting machine used in the current pile head breaking construction, the present invention provides a machine that is easy to operate, can ensure the cutting section is flat and will not cause damage to the steel bar, will not cause bending deformation of the steel bar, and will not affect the resistance of the steel bar. Pile Head Cutting Device for Tensile Strength

Method used

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  • Lifting cast-in-place pile head cutting device
  • Lifting cast-in-place pile head cutting device
  • Lifting cast-in-place pile head cutting device

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Embodiment Construction

[0019] When pouring cast-in-situ piles, the elevation of the top of the piles should be 0.5-1.0m higher than the design pile top elevation to ensure the concrete strength of the pile head, but the pile head part higher than the design elevation of the pile top must be chiseled off during the subsequent construction, that is, "Broken pile head". At present, the method of breaking the pile head is many times faster than the traditional manual pneumatic pick, but there are still problems of varying degrees in the existing pile breaking machines, mainly in the low construction efficiency and time-consuming stripping of the main reinforcement and acoustic pipe. It is longer and less efficient. When chiseling with a pneumatic pick, it is easy to cause damage to the steel bar and cause the steel bar to bend and deform, thereby reducing the tensile strength and weakening the connection between the pile body and the cap. After the pile head is removed, the pile top is uneven. , To a ce...

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Abstract

The invention discloses a hoisting cast-in-place pile head cutting device, which comprises a support beam, a rotary drive mechanism, a cutting mechanism and a positioning mechanism, wherein the rotary drive mechanism includes a power source, and the output rotating shaft of the power source passes through a thrust bearing and a roller bearing respectively. It is installed in the middle of the supporting beam, and a rotating frame is fixed below the output rotating shaft. The rotating frame is a cylindrical cylinder or a cylindrical frame structure. The cutting mechanism is located on the upper part of the rotating frame, and the positioning mechanism is located on the lower part of the rotating frame. The invention is easy to operate, high in construction efficiency, smooth in cutting section, does not cause damage to steel bars, does not cause bending deformation of steel bars, does not affect the tensile strength of steel bars, and after removing the pile head, the height of the pile top is even , easy to operate and save manpower.

Description

technical field [0001] The invention belongs to the technical field of cutting tools for building construction, and in particular relates to a hoisting type cast-in-place pile head cutting device applied to the cut-off of cast-in-place pile heads. Background technique [0002] In order to ensure the quality of the pile head during pile foundation construction, the elevation of the pile top is generally higher than the design elevation. Because of the pouring of concrete, the sediment at the bottom of the pile and the impurities precipitated in the mud during the pouring process will form a certain thickness on the surface of the concrete. , generally called laitance, the pile head of cast-in-situ pile is mixed with impurities such as silt, and the strength cannot meet the requirements of use. Then when the concrete is solidified, the super-filled part must be chiseled to expose the main reinforcement (reinforcement) above the pile top elevation. Come, after the pile foundati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D9/00
CPCE02D9/00
Inventor 王国垒张博
Owner 郑州宏拓电子技术有限公司
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