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Construction method for spiral auger central pump injection superflowing concrete screw pile and device for fabricating screw thread of the pile

A technology of auger drill pipe and construction method, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of difficult synchronization, difficulty in forming threads, and inability to form threads, etc., and achieves good pile-forming effect and increased side The effect of low friction and modification cost

Active Publication Date: 2006-12-20
黑龙江省建工集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many construction methods for concrete pouring piles in building construction, such as: superfluid concrete pouring pile method, the pouring pile cannot form threads, there is a waste of concrete, and the disadvantages of high cost, while the existing threaded pile construction The cost of the machine tool is high, the synchronization problem is difficult to solve, it is not easy to form threads, and it is difficult to succeed

Method used

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  • Construction method for spiral auger central pump injection superflowing concrete screw pile and device for fabricating screw thread of the pile
  • Construction method for spiral auger central pump injection superflowing concrete screw pile and device for fabricating screw thread of the pile
  • Construction method for spiral auger central pump injection superflowing concrete screw pile and device for fabricating screw thread of the pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The construction method of superfluid concrete threaded piles with center pumping of auger drill rods. First, a long auger drill with a thread making device is used to drill to the design depth, and then the hydraulic jack is started to extend the thread maker, and at the same time, the drill pipe is reversed and lifted. While pulling out the drill pipe, pour superfluid concrete through the hollow drill pipe, and finally put out the drill pipe and insert it into the reinforcement cage.

Embodiment 2

[0023] The screw making device described in embodiment 1, its composition comprises: the auger rod 6 of common long auger drilling machine, hydraulic jack 3, thread maker 2, described auger rod is hollow drill rod, described hydraulic jack 3 Located on the helical blade 4 at the bottom of the auger rod, the thread maker 2 is located at the end of the hydraulic jack 3 .

Embodiment 3

[0025] In the construction method of threaded piles with superfluid concrete injected into the center of the auger drill pipe described in embodiment 1, the superfluid concrete is concrete with a slump of 18cm-24cm.

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Abstract

The invention relates to a method for constructing the concrete screw post of screw drilling rod central pump, and a relative screw producer, wherein it can solve the problems as high cost and hard synchronization; it comprises: first using the long screw driller to drill the hole to preset length; then the hydraulic jack extends out the screw producer to rotate reversely and lift the drilling rod, while filling over-flow concrete into the hollowing drilling rod; then drawing out the drilling rod to insert into the steel bar cage.

Description

Technical field: [0001] The invention relates to a construction method and a machine tool for building pile foundations. Background technique: [0002] At present, there are many construction methods for concrete pouring piles in building construction. For example, the method of superfluid concrete pouring into piles cannot form threads in the pouring piles, which has the disadvantages of wasting concrete and high cost. However, the existing threaded pile construction The cost of the machine tool is high, the synchronization problem is difficult to solve, it is not easy to form threads, and it is difficult to succeed. Invention content: [0003] The purpose of the present invention is to provide a construction method and a screw thread manufacturing device for auger rod center pumping superfluid concrete threaded piles which can improve the bearing capacity of piles and reduce construction costs. [0004] Above-mentioned purpose realizes by following technical scheme: ...

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 黑龙江省建工集团有限责任公司
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