Novel precast drainable tube pile and preparing construction method thereof

Abstract

The invention discloses a novel prefabricated drainable pipe pile and a preparation and construction method thereof, belonging to the field of geotechnical engineering. The invention includes: a prefabricated pipe pile body, longitudinal and transverse reserved grooves on the pile surface, a permeable concrete layer, corresponding pipe pile end plates and the like. The present invention fills the grooves reserved longitudinally and transversely on the side walls of the prefabricated pipe piles with permeable concrete as the drainage channel for the pore water in the soil, and connects the piles through the corresponding pipe pile end plates designed by the present invention to ensure the connection between the piles. The drainage path behind the pile is unobstructed. The application of the present invention can reduce the soil squeezing effect in the process of sinking piles, accelerate the consolidation of soil between piles, increase pile side friction, effectively reduce the vertical and horizontal displacement of adjacent piles, and improve the bearing capacity of pile foundations ; It can also reduce the post-construction settlement and negative frictional resistance of the pile side soil. The invention has the advantages of simple structure, factory production, high construction efficiency and remarkable 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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