Improved soil cutting device and drum with forwardly inclined cutting element

A device for making a vertical retaining wall and/or foundation, comprising:

• a frame with a substantially vertically movable outer end;
• a cutting frame mounted close to the outer end, wherein the cutting frame is provided with at least one pair of drums which are each rotatable about a respective rotation axis, wherein the rotation axes of the at least one pair of drums lie parallel to and at a distance from each other so that the drums can rotate adjacently of each other as seen in a plane perpendicularly of the rotation axes, wherein an outer surface of each of the drums is provided along the periphery thereof with at least one row with at least five cutter holders extending from the outer surface in a substantially radial direction, wherein each cutter holder comprises at least one cutting element extending away from the outer surface and having a stop surface which has an angle with a centre line which intersects the rotation axis of the corresponding drum and a centre of the corresponding cutter holder at the position of the outer surface;
• wherein the at least one pair of drums are rotatingly driveable for the purpose of dislodging soil while the outer end is driven into the soil.