| 摘要 |
Device for producing a sheeted trench (3), characterised in that it (1) consists of a series of sheeting elements (5) in the form of shaft segments (30); a cuttershoe (7) with a cutting edge (8) oriented downwards; a frame (10) that is movable in at least the longitudinal direction of the trench (3) provided with means (9) to systematically push the cuttershoe (7) vertically into the ground (11) by machine over a depth essentially corresponding to the height of the sheeting elements (5); means (23) for evacuating the earth upwards from the trench (3) by machine in order to form the trench (3), means to systematically bring the sheeting elements (5) into place in order to support the trench (3) obtained. |
