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Construction method for wholly removing drilling pile head

A construction method and technology of bored piles, which are applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of not being able to adapt to high-efficiency construction speed, large damage to pile body reinforcement, and labor and material resources, and achieve reliable construction quality. The construction operation is simple and the effect of reducing labor

Inactive Publication Date: 2012-07-18
HUNAN NO 2 ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, in engineering construction, the traditional manual demolition or manual assisted small-scale mechanical demolition has been basically used, which consumes a lot of manpower and material resources, and the speed is very slow, causing great damage to the quality of the pile body and the reinforcement of the pile body, and cannot adapt to the current infrastructure construction The high-efficiency construction speed required by the project; the pile head breaking process also caused pollution to the environment due to the large dust

Method used

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  • Construction method for wholly removing drilling pile head
  • Construction method for wholly removing drilling pile head
  • Construction method for wholly removing drilling pile head

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Embodiment Construction

[0022] A construction method for overall removal of a bored pile head, comprising:

[0023] 1. Materials and Equipment

[0024] (1) The materials are shown in Table 1

[0025] Table 1 Main material equipment list

[0026]

[0027] (2) Machinery and equipment as shown in Table 2

[0028] Table 2 selected machinery and equipment

[0029]

[0030] 2. Construction technical parameters

[0031] Before formal construction, reasonable construction technical parameters must be selected, as shown in Table 3.

[0032] Table 3 Construction Technical Parameters

[0033]

[0034] 3. Construction steps:

[0035] (1) After the pile hole of the bored pile is drilled, before installing the reinforcement cage to the pile hole, put a casing on the upper end of the main reinforcement of the exposed cap of the reinforcement cage and the upper end of the acoustic measuring tube, and fix the casing And make casing do not move axially;

[0036] Among them, attention should be paid to...

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Abstract

The invention discloses a construction method for wholly removing a drilling pile head, which belongs to building construction methods and comprises the following steps: 1) sheathing and fixing sleeves on the upper end of a main steel bar of an exposed bearing platform of a rebar cage and the upper end of an acoustic testing pipe; 2) placing a rebar cage sheathed with a sleeve in a pile hole and pouring concrete so as to form a pile foundation; 3) excavating a bearing platform pit when the pile foundation reaches to certain strength; 4) drilling on a position about 10cm above top elevation of a preset pile top in the radial direction along the pile foundation diameter after a foundation pit is excavated; 5) inserting a separating wedge into each drilling hole, hitting the wedges with external force till that the pile head and a pile body are completely separated; and 6) lifting away the pile head from the pile body by a lifting device. The construction method for wholly removing the drilling pile head has a wide application range, materials are easily accessible, and the method is simple and convenient in construction and operation, fast in construction speed, reliable in construction quality, and economical and reasonable. The construction method can well remove the pile head, reduce labor intensity, reduce dust and noise to the greatest extent, and also protect environment and meet green construction requirements.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for integral removal of bored pile heads. Background technique [0002] Bored cast-in-place piles are widely used in high-rise construction projects because of their reliable quality and strong stratum adaptability; The removal of foundation piles has always been a difficult problem. For a long time, in engineering construction, the traditional manual demolition or manual assisted small-scale mechanical demolition has been basically used, which consumes a lot of manpower and material resources, and the speed is very slow, causing great damage to the quality of the pile body and the reinforcement of the pile body, and cannot adapt to the current infrastructure construction The high-efficiency construction speed required by the project; in the process of breaking the pile head, there is also a large amount of dust, which pollutes the environment. Contents o...

Claims

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Application Information

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IPC IPC(8): E02D9/00
Inventor 李永迪谭粮好赵志平李再春李妹
Owner HUNAN NO 2 ENG
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