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Title:
STEEL PIPE PILE JOINT STRUCTURE
Document Type and Number:
Japanese Patent JP2013234561
Kind Code:
A
Abstract:

To provide a steel pipe pile joint structure capable of improving verticality in the case of junction and facilitating joint work (welding or bolt press-fitting) irrespective of steel pipe piles having the different or same diameter.

An inventive steel pipe pile joint structure is the steel pipe pile joint structure 1, 1A, 1B, 1C, 1D for joining a lower steel pipe pile 2 installed first on a foundation and an upper steel pipe pile 4 to be connected to the upper end of the lower steel pipe pile 2 to each other. The steel pipe pile joint structure is constituted of: a lower pile special part 3 integrally joined to the upper end of the lower steel pipe pile 2 and having an outer diameter identical to that of the lower steel pipe pile 2; and an upper pile special part 5 including an outer fitting part 52 having an inner diameter substantially identical to the outer diameter of the lower pile special part 3 for externally fitting to the lower pile special part 3, and an upper end fixing part 53 having an inner diameter substantially identical to the outer diameter of a lower end 43 of the upper steel pipe pile 4 for externally fitting to the lower end 43 of the upper steel pipe pile 4.


Inventors:
SUZUKI IKUO
Application Number:
JP2013068486A
Publication Date:
November 21, 2013
Filing Date:
March 28, 2013
Export Citation:
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Assignee:
TOBU KK
International Classes:
E02D5/24
Domestic Patent References:
JP2009161925A2009-07-23
JP2005171532A2005-06-30
JP2006037619A2006-02-09
JP3115424U2005-11-04
JP2004036251A2004-02-05
JP2002275888A2002-09-25
JP2009299298A2009-12-24
JP2004232256A2004-08-19
JPS4923605Y11974-06-25
JPS4923604Y11974-06-25
Foreign References:
US4444421A1984-04-24
Attorney, Agent or Firm:
Onuki Kotake International Patent Office