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Device and method for breaking pile head of foundation pile

A technology of foundation pile head and pile head, which is applied in sheet pile wall, foundation structure engineering, construction and other directions, can solve the problems of low removal efficiency of cast-in-place pile head and difficulty in transporting large pieces of concrete out of the foundation pit.

Active Publication Date: 2020-10-20
CHINA RAILWAY NO 2 ENG GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of low removal efficiency of cast-in-place pile heads in the prior art and the difficulty of transporting large pieces of concrete out of the foundation pit after removing the pile heads, the present invention provides a device for removing foundation pile heads, which can At the same time, the cast-in-place pile head is broken in multiple directions at the same time, and it can facilitate the broken concrete to be discharged from the formwork

Method used

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  • Device and method for breaking pile head of foundation pile
  • Device and method for breaking pile head of foundation pile
  • Device and method for breaking pile head of foundation pile

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Embodiment 1

[0030] In order to simultaneously break the cast-in-situ pile head in multiple directions before the initial setting of the concrete, and facilitate the removal of the broken concrete from the formwork, such as Figure 1 to Figure 3 As shown, the present invention provides a kind of device that breaks foundation pile head, comprises material injection pipe 1, and the top of material injection pipe 1 is connected with feed pipe 2, is provided with handle 3 at the upper end of material injection pipe 1, and spraying material The bottom of pipe 1 is fixedly provided with at least 2 sub-nozzles 5, and all sub-nozzles 5 are arranged at intervals on the circumferential direction of material spray pipe 1; A stirring piece 61 is fixedly installed on the lower bottom surface of the device 6 .

[0031] The work flow of the breaking device provided by the present invention is: before the initial setting of the concrete, the breaking device of the present invention is arranged on the insi...

Embodiment 2

[0038] In order to effectively remove the foundation pile head and reduce the damage to the main reinforcement during the removal process, the present invention provides a method for removing the foundation pile head, combined with the above-mentioned device for removing the foundation pile head, including The following steps:

[0039] (1) Erection of a breaking device, which shall be arranged at the overfilling part of the cast-in-place pile before the initial setting of the concrete;

[0040] (2) cutting the cast-in-situ pile head, and forming a high-speed water flow in the breaking device through the high-pressure device to cut the cutting material, so as to cut the cast-in-place pile head;

[0041] (3) Clean the pile head. After the breaking device completes the cutting, withdraw the breaking device and discharge the waste liquid in the formwork. After the initial setting of the concrete, remove the formwork and rinse the exposed steel bars;

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Abstract

The invention relates to a device and method for breaking a pile head of a foundation pile, and belongs to the technical field of concrete filling piles. The method for breaking the pile head of the foundation pile comprises the following steps: 1, erecting the breaking device, and arranging the breaking device on a super-pouring part of the cast-in-place pile before concrete is preliminarily solidified; 2, cutting the pile head of the cast-in-place pile, enabling the cut material to form high-speed water flow in the breaking device through a high-pressure device to be used for cutting the pile head of the cast-in-place pile; and 3, cleaning the pile head, removing the breaking device and discharging waste liquid in a template after the breaking device finishes cutting, removing the template after the concrete is preliminarily solidified, and washing to expose steel bars. According to the method, the pile head of the foundation pile can be effectively broken, and the damage to a main reinforcement can be reduced in the breaking process.

Description

technical field [0001] The invention relates to a device for removing foundation pile heads and a method for removing foundation pile heads, and belongs to the technical field of concrete pouring piles. Background technique [0002] "Breaking the pile head" is the last key process in the construction of bored piles, and it is also an indispensable part of the construction of bored piles. At present, the methods of breaking pile heads mainly include manual pile breaking method, mechanical pile breaking method and fast non-destructive honeycomb pile breaking method. In the manual pile breaking method and the mechanical pile breaking method, the construction method is simple, the operation is convenient, and the requirements for personnel are not high; however, the manual pile breaking method and the mechanical pile breaking method have low construction efficiency and high labor costs, and the After the head, it is difficult to transport large pieces of concrete out of the fou...

Claims

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Application Information

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IPC IPC(8): E02D9/02
CPCE02D9/005
Inventor 吴建福高夫辉杨琴秦洋赵世超唐仕雄王良杨旭东杨行邓涛郭炼任友峰
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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