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Title:
CONSTRUCTION METHOD OF FOUNDATION PILE WHOSE PILE HEAD IS REINFORCED, FOUNDATION PILE STRUCTURE WHOSE PILE HEAD IS REINFORCED
Document Type and Number:
Japanese Patent JP2015218516
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a well-balanced foundation pile structure in which a precast pile can be designed with reduced pile head strength, by reinforcing a pile head part of a concrete precast pile by bearing horizontal force and the like according to an outer diameter and thickness of an outer short precast pile.SOLUTION: A foundation pile is constructed by: excavating an axis part 21 and a foot protection part 22 of a pile hole 20 with an excavation rod 31 (a), in a diameter corresponding to an outer diameter of an outer short precast pile 10 with projections 13; forming a foot protection liquid layer 43 and a pile periphery fixing liquid layer 42 by filling the pile hole 20 with cement milk, joining and successively lowering precast piles (concrete-based) 1A, 1B, 1C in the pile hole 20 and embedding the same as a precast pile 1 inside the pile hole 20 (b), (c); and embedding the outer short precast pile 10 (concrete-based) in the upper end of the pile hole 20 so as to cover an outer wall 2 side of the precast pile 1C, and solidifying the pile periphery fixing liquid layers 42, 42a, 42b and the foot protection liquid layer 43, thereby constructing a foundation pile 40 (d).

Inventors:
KATO YOICHI
MATSUMOTO YUKINORI
Application Number:
JP2014103938A
Publication Date:
December 07, 2015
Filing Date:
May 20, 2014
Export Citation:
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Assignee:
MITANI SEKISAN KK
International Classes:
E02D5/30; E02D7/00; E02D27/12
Domestic Patent References:
JP2009030372A2009-02-12
JP2007077639A2007-03-29
JP2007039955A2007-02-15
JP2010209645A2010-09-24
JPH09324422A1997-12-16
Foreign References:
US20020048493A12002-04-25
Attorney, Agent or Firm:
涌井 謙一
山本 典弘
鈴木 一永