Coupling head for premanufactured prestressed piles

(19)

(11)

EP 1 582 633 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	11.01.2006 Bulletin 2006/02

(43)	Date of publication A2:
	05.10.2005 Bulletin 2005/40

(21)	Application number: 05380057.9

(22)	Date of filing: 29.03.2005

(51)

International Patent Classification (IPC):

E02D 5/52^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR LV MK YU

(30)

Priority:

31.03.2004 ES 200400777 U

(71)	Applicant: Terratest Tecnicas Especiales, S.A.
	28020 Madrid (ES)

(72)	Inventor:
	Montemayor Garcia, Jorge 28002 Madrid (ES)

(74)	Representative: Ungria Lopez, Javier et al
	Avda. Ramon y Cajal, 78 28043 Madrid 28043 Madrid (ES)

(54)	Coupling head for premanufactured prestressed piles

(57) In principle, it comprises a front plate and side plates that form a recess that surrounds end sections of the piles. Furthermore, it includes solid bodies and front projecting heads fastened to the plates, at the same time that these heads are completed with holes made in the front plates and solid bodies. It also includes some fastening shanks that are introduced in some holes located perpendicularly to the side plates and other holes (9) of the projecting holes that are previously introduced in the front holes in the connection of two piles with prestressed piles. The heads and solid bodies are connected to some rods embedded in the material of the piles. It is characterized in that the ends of the presetressed cables (12) are connected integrally to the front plates (1) of the heads before stress is eliminated from the cables for the purpose of consolidating and reinforcing the connection between the piles.

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