Method for improving compression resistance bearing capacity of concrete prefabricated hollow pile
A technology of concrete and hollow piles, which is applied in the direction of sheet pile walls, foundation structure tests, construction, etc., can solve the problems of insufficient compressive bearing capacity of concrete prefabricated hollow piles, and achieve the effect of saving engineering cost and simple method
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[0018] The present invention will be further described below. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
[0019] (1) Preliminary design of the upper structure is carried out according to the architectural design drawings, and the precast concrete hollow pile type is determined according to the calculation results and the geological survey report; the design value of the compressive bearing capacity of the precast concrete hollow pile is not considered during the design of the core filling Satisfy:
[0020]
[0021] Where S is the basic combination of load effects transmitted to the top of the pile, and N is the design value of the pile's compressive bearing capacity, Is the pile forming process factor, f c1 Is the design value of the axial compressive strength of the pile body concrete, σ pc Is the effective pre-compression stress of...
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