| 摘要 |
The tube enables replaceable attachment of a bottom nozzle for high-speed, high-pressure jets. It is used in a hydromechanical device for cutting very hard materials, such as sealing walls in sealing structures. Cutouts (16) in such a wall (14), or in piles, at the same height, are filled with filler units (17). Guiding tubes (18), extending to these, have nozzle tubes (6) inserted in them, with one more replaceable nozzles (7) at the bottom. These cut through the fillers in the cutouts and flush them out. This produces a continuous constant-level mounting surface as attachment element for mounting a stiffening element (20), such as floor slab or roof, inside the sealing structure (B) enclosed by the walls. |
