Construction Techniques of Large Diameter Single-section Extra-long Prestressed Pipe Pile with High Pile Rack Limit and Hydraulic Punch Hammer Pile Sinking in Reclamation Land Area
In view of the restricted construction of single-section super-long prestressed piles in reclaimed land area,it is proposed to adopt the construction method of high pile frame limitation and hydraulic impact hammer for pile sinking.The pile sinking limit frame equipped with limit hoop was used to fix and limit the position of large diameter super-long prestressed pipe piles,and the hydraulic impact hammer was hoisted to sink the piles.The huge impact energy was combined with the special open-type guiding tip,which made the piles sinking guided and penetrating.The piles sinking to the design elevation quickly is realized and efficiently,and the corresponding new construction technology is formed.
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