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

Abstract

The construction method of threaded pile with superfluid concrete pumping in the center of the auger drill pipe and its thread making device. At present, there are many construction methods for concrete pouring piles in building construction. For example: superfluid concrete pouring into piles, which cannot form piles Screw threads have the disadvantages of wasting concrete and high cost. However, the existing threaded pile construction equipment is expensive, and the synchronization problem is difficult to solve. It is difficult to form threads and is difficult to succeed. The present invention can solve the above problems. The construction method of the spiral drill pipe central pump injection superfluid concrete threaded pile, first drills to the design depth with a long spiral drill with a thread making device, and then starts the hydraulic jack to extend the screw thread at the end. The fabricator reverses and lifts the drill pipe at the same time, pours superfluid concrete through the hollow part of the drill pipe while pulling out the drill pipe, and finally puts out the drill pipe and inserts it into a reinforcement cage. The invention is applicable to various building constructions.

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: ...

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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

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