Novel precast drainable tube pile and preparing construction method thereof

Abstract

The invention discloses a novel precast drainable tube pile and a preparing construction method thereof, which belong to the field of geotechnical engineering. The novel precast drainable tube pile comprises a precast tube pile body, longitudinal and transverse reserved grooves in the pile surface, a pervious concrete layer and corresponding tube pile end plates, etc. The longitudinal and transverse reserved grooves in the side wall of the pile body of the precast tube pile are filled with pervious concrete as drainage passages for pore water in a soil mass, and by performing inter-pile connection on the corresponding tube pile end plates designed by the present invention, smoothness of the drainage paths after pile connecting can be ensured. By applying the novel precast drainable tube pile, a soil compaction effect in a pile sinking process can be reduced, consolidation of the soil mass among the piles can be accelerated, a pile side friction can be increased, vertical and horizontal displacements of adjacent pile bodies can be effectively reduced, and a pile base bearing capacity can be increased; and a settling volume and a negative friction resistance of the pile side soil mass after construction can be reduced. The novel precast drainable tube pile is simple in structure, can be industrially produced and is high in construction efficiency and obvious in actual social and economic benefits.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, in particular to the field of prestressed concrete pipe piles, and specifically relates to a novel prefabricated drainable pipe pile and a preparation and construction method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, the number of land reclamation projects, wharf yard projects, and expressway construction projects has increased sharply, and the soft soil problems encountered in this type of coastal, lakeside, and riverside projects have become Difficulties that have to be faced in engineering construction. At present, the main soft soil foundation treatment methods in my country are: drainage consolidation method, dynamic compaction method, lime pile method, vibrating replacement method, reinforced soil method, immersed tube gravel pile method, etc. However, for some relatively deep soft soil layers, the above treatment meth...

AI Technical Summary

Problems solved by technology

These new pipe piles provide drainage paths by reserving transverse holes on the side walls of the pile body. However, during the actual drainage process on site, soil particles will enter the drainage channels and block the preset drainage paths. The actual foundation effect is not ideal.

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