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Simple construction method of screw pile

A construction method and threaded pile technology, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of small use range, difficult to achieve process requirements, many mechanical equipment failures, etc., and achieve low drilling and lifting resistance. The effect of simple and easy equipment transformation and fast construction speed

Inactive Publication Date: 2007-10-31
曹兴明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are two construction methods of fully threaded piles and semi-threaded piles used in the construction market, both of which have absolute idealization problems in theory. They both emphasize that the drilling thread and the lifting thread are definitely a problem of matching trajectories, resulting in The manufacture of construction machinery is difficult, and it is difficult to achieve the process requirements. In order to achieve the absolute matching and consistency of drilling and lifting threads, the complexity and manufacturing costs of the equipment are increased, such as the use of frequency converters on the motors, and special full-threaded drill pipes Devices such as semi-threaded drill pipes and other devices cannot reach the expected effect, and there are many mechanical equipment failures, the drilling capacity is limited, and the scope of use is small, which affects the progress of the project

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] A simple construction method for threaded piles, using the existing auger drilling machine frame, equipped with an electric turntable power head, a non-threaded drill pipe, a threaded drill bit, a hoist wire rope pressurizing device, and a hoist wire rope pressurizing device during drilling to pull the upper end of the drill pipe Drive the threaded drill bit at the lower end of the drill pipe to drill in the forward direction. After drilling to the design depth, reverse the lifting pressure to pour the concrete to the design elevation and place the steel cage to form a pile. When the length and diameter of the threaded pile change, replace the non-threaded drill pipe and the different diameter. The drill bit can meet the construction requirements.

Embodiment 2

[0020] In the simple construction method of threaded piles described in Example 1, when the present invention is pouring concrete with reverse lifting pressure, the wire rope pressurizing device of the hoist should be in the state of free release of the rope, regardless of the matching problem between the drilling and the lifting trajectory, the thread pitch Determined according to lifting speed and rotation speed.

Embodiment 3

[0022] In the simple construction method of threaded piles described in Embodiment 1 or 2, the electric turntable power head used can move on the stalk according to the construction needs, and the threaded drill bit used is not less than two pitches or more, and the cross-section is larger than that of the non-threaded pile. Drill pipe to reduce drag.

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Abstract

The invention relates to the screw post simple construct method, the whole screw post and half screw post construct method used in the prior architecture market both emphasizes that the drilling screw and the threading screw is a trace matching problem, to generate the construct difficulty of the construct machinery, and it is not easy to realize manually, the complexity and the product cost is increased to realize the absolutely matching and compatibility of the drilling and threading screw, The invention could effectively solve the problem, The invention uses the prior spiral driller provided with an electric drive carousel unit head, a non-screw drilling post, a screw driller, and a hoister steel wire pressure adding device, the hoister steel wire pulls the top of the hoister steel wire pressure adding device and the drive the bottom screw driller to normally drill, when the driller drills to the original depth, the driller will reversely drill and rise, and concrete is injected to the original height, at last the steel post will be arranged. The utility is applicable to use in the architecture base construct method.

Description

Technical field: [0001] The invention relates to a construction method for building pile foundations. Background technique: [0002] At present, there are two construction methods of fully threaded piles and semi-threaded piles used in the construction market, both of which have absolute idealization problems in theory. They both emphasize that the drilling thread and the lifting thread are definitely a problem of matching trajectories, resulting in The manufacture of construction machinery is difficult, and it is difficult to achieve the process requirements. In order to achieve the absolute matching and consistency of drilling and lifting threads, the complexity and manufacturing costs of the equipment are increased, such as the use of frequency converters on the motors, and special full-threaded drill pipes Devices such as semi-threaded drill pipes and other devices cannot reach the expected effect. There are many mechanical equipment failures, the drilling capacity is li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E02D5/56
Inventor 曹兴明
Owner 曹兴明
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