Crushing device, breaking method and application of pile head of cast-in-place bored pile

A technology of bored piles and crushing devices, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, etc. It can solve the problems of large impact on the quality of pile head reinforcement, low efficiency of pile head removal, and large impact on personnel health, etc., to achieve convenience Turnover and reuse, wide application range, cost-saving effect

Inactive Publication Date: 2018-12-14
CCFEB CIVIL ENG
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The invention provides a crushing device, breaking method and application of bored cast-in-situ pile heads, to solve a green, environmentally friendly and efficient pile head breaking method, to solve the problem of large air pollution, Technical problems that have a great impact on personnel health, great impact on the quality of pile head reinforcement, and low pile head removal efficiency

Method used

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  • Crushing device, breaking method and application of pile head of cast-in-place bored pile
  • Crushing device, breaking method and application of pile head of cast-in-place bored pile
  • Crushing device, breaking method and application of pile head of cast-in-place bored pile

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specific Embodiment approach

[0046] (1) Seal the exposed main bars of the steel cage, the acoustic measuring tube and the detecting tube to cover the PVC pipe respectively, and seal both ends of the PVC pipe to prevent concrete from entering the PVC pipe during the concrete pouring process;

[0047] (2) Pre-embed a crushing device at the top 10cm of the pile top elevation to separate the pile head concrete from the pile body concrete through horizontal expansion force. After installing the crushing device, hoist the reinforcement cage into the hole and fill it with concrete;

[0048] The horizontal crushing component 11 of the crushing device adopts a horizontal ring-shaped hollow Φ40 PVC pipe, and the injection pipeline 121 and the observation pipeline 122 adopt Φ40 PVC pipes, which are connected through adapter joints and extend to more than 20 cm above the ground; the horizontal crushing component 11 is reinforced and fixed by steel bars, and injected The pipeline 121 and the observation pipeline 122 ar...

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Abstract

The invention discloses a crushing device, a breaking method and an application of a pile head of a cast-in-place bored pile. The crushing device of the pile head of the cast-in-place bored pile comprises the crushing device, wherein the crushing device is used for separating pile head concrete from pile body concrete through horizontal expansion force; the crushing device comprises a horizontal crushing assembly and a communicating pipe, wherein the horizontal crushing assembly is arranged at the joint position of the pile head concrete and the pile body concrete, and the horizontal crushingassembly is used for generating the horizontal expansion force to force the pile head concrete to be separated from the pile body concrete; and the communicating pipe extends out of the pile head concrete and is in communication with the inner cavity of the horizontal crushing assembly, and is used for injecting a crushing agent into the inner cavity of the horizontal crushing assembly. Accordingto the crushing device of the pile head of the cast-in-place bored pile, the structural design is simple, the crushing device of the pile head of the cast-in-place bored pile is placed at the joint position of the pile head concrete and the pile body concrete, and the separating effect can be achieved by injecting the crushing agent.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a crushing device for bored cast-in-place pile heads. In addition, the present invention also relates to a breaking method and application of the crushing device comprising the pile head of the cast-in-place pile. Background technique [0002] In the construction of construction projects, bridge engineering, urban rail transit and other engineering projects, the technology of bored piles is widely used. The wall of bored piles is usually made of mud wall, and the pile head is broken by traditional manual breaking method and small mechanical breaking. The method, the ring knife method, the ring chisel method, etc., are prone to environmental pollution during the construction process, and the dust generated during the demolition has a great impact on the health of the workers. The pile head steel bars are easy to bend or even break, and the quality cannot be guarantee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D9/00
CPCE02D9/00
Inventor 周志强黄仁朱训超李绩根邹广庚
Owner CCFEB CIVIL ENG
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