Method for connecting a sheet pile to a beam

Method for erecting a supporting wall, comprising following steps:

• providing a sheet pile having a standard hook-type interlocking element;
• providing a beam having a beam flange with an initially flat flange edge;
• providing on said initially flat flange edge a longitudinal succession of bulges protruding with respect to said beam flange so as to transform said initially flat flange edge in an undulating flange edge;
• providing an asymmetric connection section incorporating on one side a groove which widens from the outside to the inside, and on a side opposite said groove a standard hook-type interlocking element complementary to said standard hook-type interlocking element of the sheet pile;
• sliding the connection section over the undulating flange edge, so that said protruding bulges are received in said groove with ability to lock the connection section laterally onto said undulating flange edge;
• locking said connection section in a longitudinal direction with respect to the beam flange;
• driving the beam prepared in this way partially into a ground;
• locking said standard hook-type interlocking element of the sheet pile into said standard hook-type interlocking element of the connection section;
• driving said sheet pile into the ground to form a standard hook-type sheet pile joint between said sheet pile and said connection section;
• and
• repeating the above steps as often as necessary to erect a combined supporting wall.

A section for connecting a flange of Z-shaped sheet pile having an interlocking hook forming either a standard bent LARSSEN type interlocking element or a standard straight LARSSEN type interlocking element to a beam flange, said section comprising:

• on one side, a body having a C-shaped transverse cross-section, said body defining a groove adapted for receiving and interlocking an edge of said beam flange, said groove widening from outside to inside and having a plane of symmetry;
• on the opposite side, an interlocking hook which is complementary to said LARSSEN type interlocking hook, said interlocking hook of the connection section being formed on said body so that the back of said C-shaped body defines with the hook an opening to an inner chamber;
• wherein the following condition is satisfied:
• z=(c-e)/2
• wherein z is the distance between said plane of symmetry of said groove and the bottom of said inner chamber;
• c is the width of the hook of the sheet pile;
• and
• e is the thickness of the part of said hook of the sheet pile that is parallel to a sheet pile flange;
• so that it is possible to use said section in a first position on said flange edge to connect the standard Z-shaped sheet pile with its bent LARSSEN type interlocking element to the beam flange, and to use said section turned through 180.degree. in a second position on said flange for connecting the standard Z-shaped sheet pile with its straight LARSSEN type interlocking element to the beam flange, while ensuring in both cases that the outer face of the flange of the Z-shaped sheet pile lies substantially in the same plane.