Explosion device of filling pile head and construction method thereof

A construction method and cast-in-place pile technology, which are applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of large dust, large amount of work and slow construction in the removal process, and reduce the difficulty of removal and construction cost. , the effect of high turnover

Pending Publication Date: 2017-08-01
CCCC SECOND HARBOR ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since this method removes from the periphery of the pile head inward, on the one hand, there is a risk of damaging the main reinforcement during the removal process; , high labor intensity, slow construction speed, high dust and high ris

Method used

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  • Explosion device of filling pile head and construction method thereof
  • Explosion device of filling pile head and construction method thereof
  • Explosion device of filling pile head and construction method thereof

Examples

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Example Embodiment

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The breaking device has two structural forms:

[0028] like figure 1 The device for breaking the pile head of the cast-in-place pile shown in -3 includes three coaxial annular casings 1.1, and the tops of the annular casings 1.1 are fixedly connected to form a device body 1 with an integral structure through a connecting stiffener 1.2. The gap between the outermost annular casing of the device body 1 and its adjacent annular casing is the main rib positioning interlayer 3, and between the inner wall of the outermost annular casing of the device body 1 and the outer wall of its adjacent annular casing The distance is smaller than the diameter of the main rib 6.

[0029] like Figure 4 As shown in -6, it includes two coaxial annular casings 1.1, and the tops of the annular casings 1.1 are fixedly connected to form a device body ...

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Abstract

The invention discloses an explosion device of a filling pile head. The explosion device comprises a plurality of coaxial annular protective cylinders, wherein the tops of the annular protective cylinders are fixedly connected into an integral device body by virtue of a connecting device, a main reinforcement positioning interlayer is arranged in a gap between the outmost annular protective cylinder and the adjacent annular protective cylinder of the device body, and a lifting ear plate and a rebar through bracket which enables support rebar of a reinforcement cage to pass through and is used for positioning the support rebar of the reinforcement cage are fixed to the top of the device body. According to the explosion device, the bonding strength between the main reinforcement and concrete of the pile head is reduced, the risk of easy damage to the main reinforcement is eliminated, additionally, the pile head are changed into small blocks, the pile head can be exploded block by block, the performance requirement on lifting equipment is reduced, the construction efficiency and application range of the explosion construction of an original pile head are improved, the construction dust is reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of civil engineering foundation construction, in particular to a device for removing pile heads of cast-in-situ piles and a construction method thereof. Background technique [0002] Concrete pouring piles are widely used in various foundation projects because of their reliable quality, mature construction technology, strong stratum adaptability and good bearing capacity. In the construction of cast-in-place piles, in order to ensure the quality of the concrete at the pile head and avoid the specification that the end of the pile foundation is mixed with laitance and mud, it is required that the poured concrete should exceed the set height of the pile head by 0.5-1.0m, and then Chisel off the protruding part (called the broken pile head). In order to chisel away the concrete beyond the pile head of the set cast-in-situ pile, manual chiseling or manual-assisted small-scale mechanical removal are generally us...

Claims

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Application Information

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IPC IPC(8): E02D9/00
CPCE02D9/00
Inventor 黄成伟周舒胡义新卢佩李送根刘宁波王路张成林赵磊杨清印徐庭黄斌李琴陈丹
Owner CCCC SECOND HARBOR ENG
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