Method for planting prestressed pipe pile at one step

Abstract

The invention discloses a method for planting a prestressed pipe pile at one step. The method include steps of arranging a pile planting machine in place; performing hole guiding operation; performing lifting, slurry spraying and stirring operation; performing sinking and stirring operation; performing secondary lifting, slurry spraying and stirring operation; shifting the pile planting machine to the original position to lift a pile sinking device and the pipe pile; planting the pile in a screw-in manner; reserving a joint pile working face; arranging a hoop device at an orifice in order to prevent a pile body from falling, fixedly encircling a lower pile body by the hoop device and then connecting the lower pile body into the upper pile body; and welding a joint pile; planting the pile again in a screw-in manner and shifting equipment to a next pile position after the operation is completed. The method has the advantages that the problem of high pile sinking counter-force can be solved, the engineering quality is guaranteed, the peripheral frictional resistance of the pile is improved by 30%, influence of direct pile sinking to adjacent buildings is prevented, a procedure in which a hole guiding machine and a pile sinking machine are used for construction separately is omitted, and a hole guiding, soil stirring and reinforcing and pile sinking process is completed by the pile planting machine at one step, so that the work efficiency is doubled at least, labor and time are saved, an environment of a construction site is civilized and neat, and more importantly, the engineering cost is saved by 40%.

Description

technical field [0001] The invention relates to a pile planting method, in particular to a one-time pile planting method of prestressed pipe piles. Background technique [0002] With the rapid development of urban construction, the land resources available for construction are becoming less and less, so housing construction is developing towards high-rise buildings, and various high-rise and super high-rise buildings have become the current construction dominance. For the foundation engineering of high-rise and ultra-high-rise buildings, the requirements for foundation bearing capacity are getting higher and higher, and the requirements for building settlement deformation are also getting higher and higher. In order to meet the bearing capacity and deformation requirements, deep and long pile foundations are often used in the design. [0003] Pipe piles and high-strength prestressed concrete pipe piles are produced and supplied in batches in factories, with high bearing cap...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned technical defects, the purpose of the present invention is to propose a one-time pile planting method for prestressed pipe piles, which solves the problems of large counterforce of pile sinking and cross-construction of two different models, so as to ensure the quality of the project and reduce the cost of the project. Cost, improve pile friction resistance, reduce construction site occupation, reduce cross construction and process time difference, and avoid the impact on adjacent buildings caused by direct pile sinking

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