Method for building sheet pile walls

1. A method for building a sheet pile wall, comprising the steps of:

providing a first sheet pile, said first sheet pile having a leading sheet pile interlock with an interlock chamber;

driving said first sheet pile into the ground while protecting said interlock chamber from ground material;

providing a second sheet pile, said second sheet pile having a trailing sheet pile interlock with an interlock head;

coating a fixing agent as a surface layer on an inside and an outside of said interlock head of said trailing sheet pile interlock;

engaging said coated interlock head of said trailing sheet pile interlock in said interlock chamber of said leading sheet pile interlock; and

driving said second sheet pile into the ground, wherein said trailing sheet pile interlock interlocks with said leading sheet pile interlock.

2. The method according to claim 1 , using a spreader to apply said surface layer of fixing agent onto said interlock head of said trailing sheet pile interlock.

3. The method according to claim 2 , wherein a spreader chamber of said spreader engages said interlock head of said trailing sheet pile interlock, said spreader chamber having a slightly bigger cross-section than said interlock head of said trailing sheet pile interlock.

4. The method according to claim 3 , using an injection nozzle to inject said fixing agent into said spreader chamber through an injection opening arranged in said spreader.

5. The method according to claim 1 , wherein a longitudinal opening gives access to said interlock chamber in said leading sheet pile interlock and the step of protecting said interlock chamber from ground material comprises:

a) inserting an obturating device into said interlock chamber, said obturating device comprising an inflatable tube;

b) inflating said inflatable tube so that said obturating device closes said longitudinal opening giving access to said interlock chamber;

c) driving said sheet pile into the ground, wherein said obturating device prevents ground material from penetrating through said longitudinal opening into said interlock chamber;

d) deflating said inflatable tube; and

e) withdrawing said obturating device from said interlock chamber.

6. The method according to claim 5 , wherein said obturating device comprises an obturating block, and inflation of said inflatable tube pushes said obturating block into the longitudinal opening of said interlock chamber.

7. The method according to claim 5 , said obturating device further comprises a flexible tube alongside said inflatable tube, and said interlock chamber is filled with sand through said flexible tube while withdrawing said obturating device from said interlock chamber.

8. The method according to claim 5 , further comprising.

inserting a front end obturator in the bottom end of said interlock chamber of said leading sheet pile interlock before driving said first sheet pile into the ground.

9. The method according to claim 5 , further comprising:

inserting a cleaning piece into said leading sheet pile interlock of said first sheet pile before interlocking it with said trailing sheet pile interlock of said second sheet pile.

10. The method according to claim 1 , wherein said fixing agent is an adhesive or cement.