Excavating device for making a blind channel in the ground in an excavating direction, in which the channel to be produced extends between a starting point and an end point, and in which the excavating device comprises:
- (a) an excavating head, comprising:
- a liquid jetting device which is configured for loosening the soil using a jet of liquid from the excavating head in the excavating direction in order to form a mixture of soil and liquid;
- and
- a mixture discharge device for discharging the mixture from the excavating head to the starting point;
- (b) a moving device for moving a return part of the excavating device against the excavating direction to the starting point of the channel after the end point of the channel has been reached.