Square-prismatic tube pile and processing method thereof

Abstract

The invention discloses a square-prismatic tube pile. The square-prismatic tube pile at least comprises a square pile body, wherein the external surface at each side of the square pile body is provided with a prismatic external surface. The invention also discloses a processing method of the square-prismatic tube pile. Due to the structural design of the prismatic external surfaces, the shapes of the external surfaces of the tube pile are improved, the friction coefficients of the external surfaces are increased and the lateral frictions of the tube pile are improved. Meanwhile, due to the structural design of the prismatic external surfaces, the end areas of the tube pile are increased and the end bearing capacities of the tube pile are improved. Therefore, the square-prismatic tube pile integrates the advantages of round piles and square piles, simultaneously can be used for overcoming the intrinsic defects of the round piles and the square piles and has higher compressive friction, shear performance and uplift capacity and obvious progress and beneficial effects.

Description

technical field [0001] The invention relates to the technical field of foundation piles, in particular to a square-prismatic pipe pile used as a building foundation. The invention also relates to a processing method of the pipe pile. Background technique [0002] For the construction of a high-rise building, its structural safety depends to a large extent on the foundation design, and the foundation design is carried out in accordance with the design specifications based on geological survey parameters. When building various buildings in areas with poor soil quality, especially high-rise buildings, heavy factory buildings and structures with special requirements, foundation pile technology has become a widely used foundation form. The foundation pile technology mainly uses mechanical equipment such as a static pile driver to drive multiple prefabricated pipe piles into the ground according to the designed layout as the foundation of the building. [0003] Wherein, the bear...

AI Technical Summary

Problems solved by technology

But its disadvantage is that the pile side friction coefficient is small, and the pile side friction of the square pile is mainly concentrated at the four corners, so the overall pile side friction force is small

[0007] In this case, the existing foundation pile technology must adopt additional technical means to perform a technical treatment on the unfavorable geological layer under the surface to meet the requirements of becoming a bearing layer, or increase the number of foundation piles, otherwise it will not be able to meet the load bearing requirements at the same time. Design requirements for force and shear resistance

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