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Concrete pipe pile device and its construction method

A technology of concrete pipe piles and pipe piles, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of increased construction difficulty and increased friction, and achieve the goals of improving construction efficiency, reducing resistance, and preventing eccentricity Effect

Active Publication Date: 2019-08-20
温州天泽建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The shape of traditional pipe piles is mostly linear. In the initial construction, the front end of the pipe pile will only be subjected to the pressure resistance of the pure section. As the length of the pile becomes longer, sand and soil will enter the interior of the pipe pile, causing the inner peripheral surface of the pipe pile to The friction between the ground and the foundation increases, which greatly increases the difficulty of construction

Method used

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  • Concrete pipe pile device and its construction method
  • Concrete pipe pile device and its construction method
  • Concrete pipe pile device and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 1 A concrete pipe pile device comprises a cylindrical pile body 1 and a pipe pile head 2 connected to the lower end of the pile body 1 and capable of rotating relative to the pile body 1 . Inside the pile body 1 there is a chamber 11 with a circular cross-section. The lower end of the chamber 11 communicates with the outside, and the upper end of the chamber 11 communicates with a rectifying groove 12 with the same circular cross-section. The diameter of the rectifying groove 12 is larger than that of the chamber. The diameter of 11 makes the two form a stepped surface at the joint, and a deviation-correction mechanism 4 is installed in the deviation-correction groove 12, and the deviation-correction mechanism 4 is axially limited by the gland 13 connected to the upper end surface of the pile body 1.

[0047] The concrete pipe pile device also includes a driving mechanism, which includes a driving rod 3 with a cylindrical cross section. The driving rod 3...

Embodiment 2

[0055] A construction method using the concrete pipe pile device in Embodiment 1 specifically comprises the following steps:

[0056] Step 1. Measure and place the pile position

[0057] The pile position should be set out according to the site control piles. When setting out the pile position, it should be based on the design requirements. First, determine the relative coordinates of the pile position, drive the center of the pile position into the ground 500mm with a bamboo stick, and use the quicklime line to adjust the pile diameter. Delineate, and at the same time, 500mm below the ground is used as the base level.

[0058] Step 2, pile driver in place

[0059] A diesel pile driver is used to hoist the concrete pipe pile device into the pile driver, and the pipe pile head 2 is positioned at the center of the pile position.

[0060] Step 3, Piling

[0061] After the concrete pipe pile device is positioned, the pile sinking begins. The pile hammer coincides with the cente...

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Abstract

The invention discloses a concrete tubular pile device and a construction method thereof. The device includes a pile body, a tubular pile head and a driving mechanism, and the interior of the pile body is provided with a cavity communicated with the exterior; the tubular pile head is connected to the end portion of the pile body and can rotate relative to the pile body, and the interior of the tubular pile head is provided with a containing groove communicated with the cavity; the driving mechanism includes a driving rod which penetrates into the cavity and can axially move along the cavity, and a driving part which can drive the tubular pile head to rotate relative to the pile body during the axial reciprocating movement of the driving rod along the cavity; the driving part comprises a plurality of first driving blocks evenly distributed on the inner wall of the containing groove and a plurality of second driving blocks evenly distributed on the outer wall of the driving rod; each first driving block is provided with a wedge-shaped surface, each second driving block is provided with a front end portion, and the front end portions can drive the tubular pile head to rotate by performing force on the wedge-shaped surfaces; by means of a mode of achieving linear propulsion under rotation cooperation, the overall concrete tubular pile device substantially decreases the resistance between the device body and foundation, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to a prefabricated pile used in soft foundation engineering, in particular to a concrete pipe pile device and a construction method thereof. Background technique [0002] Pipe pile is a kind of prefabricated engineering pile, mainly used in pile foundation engineering, which can improve the bearing capacity of foundation and foundation. At present, prestressed high-strength concrete pipe pile is mainly used. In the prior art, construction methods for concrete pipe piles include hammering method, rotary press-in method, internal excavation method, etc. In these construction methods, pipe piles will all be subject to foundation resistance. [0003] The shape of traditional pipe piles is mostly linear. In the initial construction, the front end of the pipe pile will only be subjected to the pressure resistance of the pure section. As the length of the pile becomes longer, sand and soil will enter the interior of the pipe pile, causin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/24E02D13/04
Inventor 连晓辉管青
Owner 温州天泽建设有限公司