Composite pipe pile with reinforcing structure in soft stratum

A technology for reinforcing structures and weak ground, applied in foundation structure engineering, sheet pile walls, buildings, etc., can solve problems such as weak resistance to horizontal shear force, achieve strong resistance to lateral slip, good quality stability, increase resistance The effect of bending performance

Pending Publication Date: 2019-06-18
CHINA RAILWAY 19TH BUREAU GRP 3RD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a composite pipe pile with a reinforcing structure in a weak stratum, which solves the technical problem that the existing prestressed pipe piles are weak in horizontal shear resistance

Method used

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  • Composite pipe pile with reinforcing structure in soft stratum
  • Composite pipe pile with reinforcing structure in soft stratum
  • Composite pipe pile with reinforcing structure in soft stratum

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Embodiment Construction

[0016] The present invention is described in detail below in conjunction with accompanying drawing:

[0017] A composite pipe pile with a reinforcing structure in a weak ground, including a weak foundation pit in a sandy soil layer, a first pipe pile section 1, a first section grouting pipe 6 and a steel rod 12, and the first section pipe pile The pipe wall of the pile section 1 is processed with a grout diffusion hole 5, and the grout diffusion hole 5 is arranged on the pipe wall in a quincunx shape; the upper socket chuck 7 and the lower socket socket are socketed on the first grouting pipe 6. The chuck 9 is provided with clamping notches 8 on the steel rod at equal intervals on the outer circle of the chuck 7 on the upper side, and the lower clamping of the steel rod is arranged on the outer circle of the lower chuck 9 at equal intervals. Connect the gap 10, the steel rod 12 is clamped between the clamping gap 8 on the steel rod and the clamping gap 10 under the steel rod, ...

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Abstract

The invention discloses a composite pipe pile with a reinforcing structure in a soft stratum. The problem that an existing pre-stressed pipe pile is weak in horizontal shear resistance is solved. A slurry diffusion hole (5) is machined in the pipe wall of a first section of pipe pile section (1), an upper sleeve chuck (7) and a lower sleeve chuck (9) sleeve a first section of grouting pipe (6), steel rod upper clamping notches (8) are formed in the outer circle of the upper sleeve chuck (7) at equal intervals in radians, the first section of grouting pipe (6) bound with a steel rod (12) is arranged in an inner cavity of the first section of pipe pile section, the first section of pipe pile section is arranged in a foundation pit of a soft foundation of a sandy soil layer, a 1:1 cement slurry (15) is poured into the first section of grouting pipe, an up-down integrated cement column body with the steel rod (12) as a skeleton is formed in the inner cavity of the first section of pipe pile section, and a cement slurry solidification body (16) is formed around the outer wall of the pipe pile of the first section of pipe pile section (1). The anti-side slip capability is high, and the construction speed is high.

Description

technical field [0001] The present invention relates to a prestressed pipe pile (commonly known as a PHC pile), in particular to a prestressed pipe pile (PHC pile) which can greatly improve the horizontal shear resistance and is installed in weak ground layers such as sand layers and pebble layers. . Background technique [0002] The pile foundation of the structure is generally set on the bearing layer of the bedrock; when the bearing layer of the bedrock is deep and the pile foundation of the structure cannot reach the bearing layer of the bedrock, prestressed pipe piles (PHC piles) are generally used as the supporting layer of the structure. Pile foundation; prestressed pipe pile (PHC) mainly relies on the friction between the outer wall of the pile body and the soil layer as the bearing capacity of the upper load; in foundation pit construction, if the pile foundation of the structure cannot reach the bearing layer of the bedrock, When the foundation pit stratum is a we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D5/58
Inventor 赵立财魏功波樊忠祥张岩峰
Owner CHINA RAILWAY 19TH BUREAU GRP 3RD
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