Bored cast-in-place pile casing and using method thereof

A technology of bored cast-in-place piles and casings, which is applied to sheet pile walls, buildings, and foundation structure engineering, and can solve problems such as improper concrete pouring measures, difficulty in pulling out casings, and difficulty in ensuring the strength of pile top concrete. The effect of reducing the construction cost and avoiding the secondary transportation

Inactive Publication Date: 2012-12-05
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the construction process of the known bored pile casing, there is a difficulty that the distance between the natural ground and the designed pile height cannot meet the requirements of the concrete superfill height, and the concrete pouring measures are not appropriate

Method used

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  • Bored cast-in-place pile casing and using method thereof
  • Bored cast-in-place pile casing and using method thereof

Examples

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[0031] Example 1

[0032] The bored pile protection cylinder of the present invention includes a cylindrical tubular protection cylinder, and a pair of lifting lugs, cutting seams and a plurality of buckles are oppositely provided on both sides of one end of the protection cylinder. See now figure 1 , figure 1 It is a schematic diagram of the protective tube structure of the embodiment of the present invention, figure 2 for figure 1 Details of middle A. As shown in the figure, the protective tube (1) is rolled by a steel plate with a wall thickness of 8mm, and its inner diameter is 620mm, which is 100mm larger than the diameter of the pile; the length of the protective tube is 1.3m;

[0033] The cutting seam (3) is arranged on the side wall of the protective cylinder, and is a full-length slit cut along the height direction that penetrates both ends of the protective cylinder, and the width of the cutting seam (3) is 5 mm;

[0034] The plurality of buckles (2) are respectively arr...

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Abstract

The invention relates to a bored cast-in-place pile casing. The casing comprises a cylindrical tubular casing body, a cutting seam and a plurality of buckles, wherein a pair of lifting lugs is oppositely arranged on the two sides of one end of the casing body. The casing is characterized in that the casing body (1) is formed by rolling a steel plate with the wall thickness of 6 to 8mm; the internal diameter of the casing body is 100m more than the diameter of a pile body; the cutting seam (3) is formed on the side wall of the casing body, is a through long cut which is formed along the height direction and penetrates through the two ends of the casing body, and has the width of 5mm; a plurality of buckles (2) are respectively arranged at the upper and lower ends of the cutting seam (3) and averagely arranged between the upper and lower ends; the distance between two buckles (2) is 250 to 350mm; and each buckle (2) comprises a buckle tail (4), a buckle bolt (5), a buckle check ring (6) and a hexagonal nut (7).

Description

technical field [0001] The invention relates to a bored cast-in-situ pile in underground engineering, in particular to a bored cast-in-place pile casing and a method for using the same. Background technique [0002] Bored piles in underground engineering, as a kind of pile foundation, are widely used in high-rise, super high-rise buildings and heavy structures. After the pile driver is installed and in place in the construction of bored piles, an important process is to bury the casing. The casing is generally made of 6-8mm steel plate, with an inner diameter 100mm larger than that of the pile body, buried beyond the depth of miscellaneous fill, and not less than 0.2m into the original soil. In addition to preventing hole collapse, isolating surface water, protecting orifice ground, fixing pile hole position and drill bit guide, the casing has conventional functions. However, in the construction process of the known bored pile casing, there is a difficulty that the distanc...

Claims

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Application Information

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IPC IPC(8): E02D5/66E02D5/38
Inventor 江海波
Owner MCC5 GROUP CORP SHANGHAI
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