| 摘要 |
Slotted wall device has a reworking device which has a frame (20) at which lower sided means is arranged for processing of soil ground. A means is provided for approximately vertical directed kneeling of reworking device. A measuring device e.g. gyroscope (2) is provided for determination of rotary position of reworking device around plumb line (50). An independent claim is also included for the method for building a slot in the soil. |
