Sheet piling

1. A method of forming a sheet pile wall, comprising:

taking a plurality of Z-shape piles or U-shape piles, the Z-shape pile comprising two flanges and a web with an angle between the web and each of the flanges of the Z-shape pile being greater than 90° and the U-shape pile comprising two webs and a flange with an angle between each of the webs and the flange of the U-shape pile being greater than 90°;

cold reforming the Z-shape piles to decrease the angle between the web and flanges of the Z-shape pile to less than 90° or cold reforming the U-shape piles to the decrease the angle between the webs and the flange to less than 90° thereby forming reformed steel piles; and

connecting a plurality of the reformed steel piles so as to form the sheet pile wall having at least one engagement section, the engagement section when viewed in a cross section being a recess that has a narrowed neck portion.

2. The method of claim 1 , wherein the Z-shape or U-shape pile is reformed to decrease the angle to less than 80° but greater than 30°.

3. The method of claim 1 , wherein the engagement section is an anchorage point for connection of additional materials or components, in particular the engagement section has a dove-tail shape.

4. The method of claim 1 , further comprising engaging one of a rubber insert, a preformed concrete facing panel and cap, a steel cage or in-situ cast concrete with the engagement section of the sheet pile wall.

5. The method of claim 1 , wherein at least two sheet pile walls are arranged as a composite wall.

6. The method of claim 5 , wherein the two sheet pile walls of the composite wall have a gap therebetween, the gap being filled with concrete.

7. The method of claim 1 , wherein connecting a plurality of reformed steel piles comprises driving a reformed pile into a surface such that it joins to an adjacent pile via an interlock mechanism.

8. The method of claim 7 further comprising excavating material located within the engagement sections of the wall after driving the pile into the surface.

9. The method of claim 1 , wherein the Z-shape pile or the U-shape pile is formed by hot rolling a steel section.

10. A method of forming a sheet pile wall, comprising:

taking a plurality of Z-shape piles or U-shape piles, the Z-shape pile comprising two flanges, each flange having a first end and a second end, and a web having a first end and a second end and the U-shape pile comprising two webs, each web having a first end and a second end, and a flange having a first end and a second end;

cold reforming the Z-shape piles such that at least a portion of the web extends away from a linear vector extending from the first end to the second end of the web or cold reforming the U-shape piles such that at least a portion of the flange extends away from a linear vector extending from the first end to the second end of the flange thereby forming reformed steel piles; and

connecting a plurality of the reformed steel piles so as to form the sheet pile wall having at least one engagement section, the engagement section when viewed in a cross section being a recess that has a narrowed neck portion.

11. The method of claim 10 , wherein the Z-shape or U-shape pile is reformed to decrease the angle to less than 80° but greater than 30°.

12. The method of claim 10 , wherein the engagement section is an anchorage point for connection of additional materials or components, in particular the engagement section has a dove-tail shape.

13. The method of claim 10 , further comprising engaging one of a rubber insert, a preformed concrete facing panel and cap, a steel cage or in-situ cast concrete with the engagement section of the sheet pile wall.

14. The method of claim 10 , wherein at least two sheet pile walls are arranged as a composite wall.

15. The method of claim 14 , wherein the two sheet pile walls of the composite wall have a gap therebetween, the gap being filled with concrete.

16. The method of claim 10 , wherein connecting a plurality of reformed steel piles comprises driving a reformed pile into a surface such that it joins to an adjacent pile via an interlock mechanism.

17. The method of claim 16 , further comprising excavating material located within the engagement sections of the wall after driving the pile into the surface.

18. The method of claim 10 , wherein the Z-shape pile or the U-shape pile is formed by hot rolling a steel section.