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High-pressure rotary-jetting hollow bottom-expanding pile and making method thereof

A technology of high-pressure rotary spraying and bottom-expanding piles, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, etc., can solve the problems of design and construction difficulty, cost of funds, and energy consumption, and achieve no mud discharge, fast construction, and reduced The effect of cost

Inactive Publication Date: 2006-04-19
雷玉华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are problems such as labor, material, capital, and energy consumption to varying degrees, which bring different degrees of difficulty to design and construction.

Method used

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  • High-pressure rotary-jetting hollow bottom-expanding pile and making method thereof
  • High-pressure rotary-jetting hollow bottom-expanding pile and making method thereof
  • High-pressure rotary-jetting hollow bottom-expanding pile and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In the foundation (3), the pile body (1) is relatively parallel and vertically arranged along the foundation (3), and the middle part of the pile body (1) is relatively parallel to the pile body (1), and the hollow hole (2) is arranged, and the hollow hole (2) runs through the pile body (1). Bottom-expanding pile feet (4) are arranged at the lower end of the inner pile body (1) of the foundation (3).

[0033] The length of the pile body (1) is determined according to the design requirements, and the pile body (1) is relatively parallel and vertically placed in the foundation (3) by means of a vibrating hammer with a pile driver. A hollow hole (2) is arranged in the middle of the pile body (1), and the aperture diameter of the hollow hole (2) and the wall thickness of the pile body (1) are set according to design requirements. Bottom-enlarging pile feet (4) are set at the lower end of the pile body (1) to improve the bearing capacity of the pile body (1), such as figur...

Embodiment 2

[0035] In the foundation (3), the pile body (1) is relatively parallel and vertically arranged along the foundation (3), and the middle part of the pile body (1) is relatively parallel to the pile body (1), and the hollow hole (2) is arranged, and the hollow hole (2) runs through the pile body (1). Bottom-expanding pile feet (4) are arranged at the lower end of the inner pile body (1) of the foundation (3).

[0036] The length of the pile body (1) is determined according to design requirements, and the pile body (1) is relatively parallel and vertically placed in the foundation (3) by a static pressure method using a pile driver. A hollow hole (2) is arranged in the middle of the pile body (1), and the aperture diameter of the hollow hole (2) and the wall thickness of the pile body (1) are set according to design requirements. Bottom-enlarging pile feet (4) are set at the lower end of the pile body (1) to improve the bearing capacity of the pile body (1), such as figure 1 , ...

Embodiment 3

[0038] The diameter of the expanded bottom pile foot (4) is greater than the diameter of the section of the pile body (1), and the height of the expanded bottom pile foot (4) is greater than the diameter of the expanded bottom pile foot (4). One end of the bottom-expanding pile foot (4) is embedded in the hollow hole (2) of the pile body (1), so that the bottom-expanding pile foot (4) and the pile body (1) form an integral body.

[0039] At the lower end of the pile body (1), the expanded bottom pile foot (4) is set, and the diameter of the expanded bottom pile foot (4) should be greater than the diameter of the pile body (1), and the height of the enlarged bottom pile foot should be greater than the enlarged bottom pile foot. The diameter of the bottom pile foot (4) improves the load capacity of the pile body (1) and the friction force at the bottom of the pile body (1), such as figure 1 , figure 2 , image 3 shown.

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Abstract

The invention is a kind of high pressure rotary-spraying hollow pedestal pile and the manufacturing method. The invention sets pile along the ground vertically, in the middle part of the pile, hollow holes are set parallel to the pile, the hollow holes is all through the pile, there sets a pedestal pile feet on the subjacent part of pile in the ground, the section of the pile is circular, rectangular or polygon. The invention is reasonable, the structure is compact, and the constructing is convenient, easy to be controlled. It saves material, labor, time, energy and investment. It upgrades the bearing ability of the pile, the bearing and price ratio of single pile is higher than current pile. It can applied to pile base of building foundation, constructing material, device base or soft soil base in constructing engineering, bridge engineering, municipal works and hydraulic engineering. The invention accords to the standards (building pile base technology standards) JGJ94-94 and (building ground process technology standards)JGJ79-91.

Description

technical field [0001] The invention relates to various foundation bearing piles in construction engineering, bridge engineering, municipal engineering, water conservancy engineering and other projects, in particular to a high-pressure rotary spraying hollow bottom-expanding pile and a manufacturing method thereof. Background technique [0002] At present, among the structural types of various foundation pile foundations used in construction engineering, bridge engineering, municipal engineering, water conservancy engineering and other projects, there are single structural piles and combined structural piles. Single structure piles include sinking pipe piles, bored piles, prefabricated square piles, pipe piles, mixing piles, CFG piles, etc.; combined structure piles include rammed expansion piles, stiff mixing piles, 3M piles, etc. [0003] Above-mentioned pile type has some weak points separately or jointly. For example, the performance-price ratio of single-structure pile...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/44E02D5/50
Inventor 雷玉华
Owner 雷玉华
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