Connection element and a sheet pile wall with connection element therefor

1. A connection element of a constant cross-section for sheet pile wall components, such as sheet piles, that have one of either a head strip without a claw strip or a claw strip without a head strip along their lateral edges to facilitate their interconnection, with said connection element having a claw profile, for engaging the head strip of a sheet pile wall component, which exhibits a claw-shaped lock formed by two hook strips, and having an attachment profile, for engaging the claw strip of a sheet pile wall component, which exhibits a neck strip and a head strip, with a larger cross-section than the neck strip, provided without a claw strip at its free end; wherein one additional head strip is formed at a free end of at least one of the two hook strips of the claw profile that is farthest from the attachment profile, for engaging the claw strip of a sheet pile wall component, whereby either the head strip or the claw strip of a sheet pile wall component may be engaged with the claw profile of the connection element.

2. A connection element as defined in claim 1 , wherein the hook strip that is provided with the additional head strip has a curved contour and wherein its free end section transitions into the additional head strip such that the free end section of the curved hook strip forms a portion of the outer contour of the additional head strip and at the same time a portion of the inner contour of the lock chamber.

3. A connection element as defined in claim 1 , wherein the claw-shaped lock of the claw profile exhibits an oval cross-sectional shape, wherein the inner contours of the curved hook strips of the claw profile that define the lock chamber are mirror-symmetrical to each other, and wherein their end sections define the open jaw of the claw-shaped lock.

4. A connection element as defined in claim 1 , wherein the main direction of attachment (X) of the claw profile, along which the sheet pile wall component in its neutral position, is to engage in the connection element, and wherein the main direction of attachment (Z) of the additional head strip that is provided at the claw profile extends parallel to the direction (X).

5. A connection element as defined in claim 1 , wherein the head strip of the attachment profile and the additional head strip of the claw profile exhibit an at least approximately identical oval cross-sectional shape, and wherein the main axes of the head strips, which exhibit an oval cross-section, run perpendicular to their respective main direction of attachment (Y, Z), along which the sheet pile wall components are to engage in their respective neutral positions.

6. A connection element as defined in claim 1 , wherein the main direction of attachment (Y) of the attachment profile extends at a specified angle relative to the main direction of attachment (X) of the claw profile.

7. The connection element as defined in claim 6 , wherein the specified angle is selected from the group consisting of 45°, 90°, 135° and 180°.

8. A connection element as defined in claim 6 , wherein the main direction of attachment (Y) of the attachment profile extends at an angle of 90° relative to the main direction of attachment (X) of the claw profile, and wherein a second identically designed attachment profile is provided, whose main direction of attachment (X′) extends at an angle of 180° relative to the main direction of attachment (X) of the claw profile.

9. A connection element as defined in claim 6 , wherein the main direction of attachment (Y) of the attachment profile extends at an angle of 45° relative to the main direction of attachment (X) of the claw profile, and wherein a second identically designed attachment profile is provided, whose main direction of attachment (Y′) extends at an angle of 135° relative to the main direction of attachment (X) of the claw profile.

10. A connection element as defined in claim 6 , wherein the main direction of attachment (Y) of the attachment profile extends at an angle of 90° relative to the main direction of attachment (X) of the claw profile, wherein a second identically designed attachment profile is provided, whose main direction of attachment (Y′) extends at an angle of 270° relative to the main direction of attachment of the claw profile, and wherein both hook strips of the claw profile are each provided with a head strip.

11. A connection element as defined in claim 1 , further comprising an additional claw profile that includes a claw-shaped lock formed by two identically designed hook strips with an inner contour corresponding to the inner contour of the lock chamber of the first claw profile.

12. A connection element as defined in claim 11 , wherein the main direction of attachment (X′) of the additional claw profile extends at an angle of 90°, and the main direction of attachment (Y) of the attachment profile extends at an angle of 180° relative to the main direction of attachment (X) of the first claw profile.

13. A connection element as defined in claim 11 , wherein the additional claw profile exhibits a head strip at the end section of at least one of its hook strips, with said head strip being designed identically to the additional head strip of the first claw profile, wherein the head strip of the additional claw profile is preferably formed at the end of the hook strip that is at a greater distance to the attachment profile.

14. A connection element as defined in claim 11 , wherein the two claw profiles are mirror-symmetric to each other, wherein the main direction of attachment (Y) of the attachment profile extends at an angle of 90° relative to the main direction of attachment (X, X′) of the two claw profiles, and wherein each claw profile has a head strip at its hook strip that is disposed at a distance from the attachment profile.

15. A connection element as defined in claim 14 , wherein both hook strips of each claw profile are provided with a head strip.

16. A connection element as defined in claim 15 , wherein an additional attachment profile is provided that is designed mirror-symmetric to the first attachment profile.

17. A sheet pile wall comprised of several sheet piles, wherein at least two sheet piles are connected to each other through a connection element as defined in claim 1 .