| 摘要 |
The invention relates to a device (10) for treating a portion of soil, which includes a rotating shaft (20), at least one deployable mixing tool (40) rigidly connected to the rotating shaft (20), and a longitudinal pipe (22) for injecting a fluid close to the mixing tool (40). According to the invention, the treatment device (10) further includes a drilling tool (24) located at the lower end of the shaft (20), an outer tubular element (30) extending parallel to the rotating shaft (20), the rotating shaft (20) being arranged inside said tubular element (30), and a coupling system (50) between the rotating shaft (20) and the tubular element (30). In a first configuration, the coupling system (50) is suitable for securing the tubular element (30) and the rotating shaft (20) rotatably about the main axis (X) in at least one direction of rotation, and for securing the tubular element (30) and the rotating shaft (20) translatably along the main axis (X) in at least the downstream direction. Said rotation and translation movements can be released in a second configuration of the coupling system (50). |
