| 摘要 |
A system (1) with a self-drilling chemical rock anchor bolt (2), specifically for use in the mining industry and a device (3) for moving the rock anchor bolt (2), said rock anchor bolt (2) comprising an anchor tube (4) which encloses an interior (12), a fixation substance (13) arranged within the interior (12) for bonding the anchor tube (4) on rock (60), a moveable piston (19) arranged inside the interior (12) for moving the fixation substance (13) outside the anchor tube (4) if the anchor tube (4) is arranged in a borehole (61) inside the rock (60), a boring head (10) at one back end (7) of the anchor tube (4), a rinsing channel (24) to supply rinsing fluid, in particular rinsing water to the boring head (10), an expression channel (26) to supply power fluid, in particular power water to the piston (19), which is to be able to supply both rinsing water as well as power water into an interior (12) of the rock anchor bolt (2) with minor technical expenses. The system (1), in particular the device (3) and/or the rock anchor bolt (2) comprises a moveable closing element (27) which is moveable between a rinsing position and a pressure position and the rinsing channel (24) is open and the expression channel (26) is closed in the rinsing position and the rinsing channel (24) is closed and the expression channel (26) is open in the pressure position. (Fig. 1) Figure accompanying the Abstract to~ : 1 -o --C-M- t C - 4T C%* - - -- |
