| 摘要 |
The invention concerns a method and device for boring, particularly percussion boring or rotary percussion boring, a hole (2) in soil or rock material and for forming an anchoring. According to the invention, a borehole (2) is formed by inserting a drill bit (4), and tensioning elements (10) coupled to the drill bit (4) are introduced into the borehole (2) during the boring process. Once the borehole (2) is completed, the boring rods (5) are detached from the drill bit (4) and removed from the borehole (2). The boring rods (5) are provided with a hollow space (22) extending essentially in the longitudinal direction of the boring rods (5) and serving to introduce a hardenable fluid into the borehole (2) as the boring rods (5) are removed from the borehole (2). Anchoring or fixing elements (14) for anchoring on the inner wall of the borehole are provided on the drill bit (4) at the end opposite the drilling surface and/or on the tensioning elements (10). The tensioning elements (10) are, at the end (12) protruding from the borehole (2), subjected to a turning or twisting whereby shortening their effective length for tensioning or centering so that a centering and an optionally temporary tensioning of the tensioning elements (10) can be effected before the hardenable material completely hardens.
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