| 摘要 |
<p>The system has a connecting anchor screw (10) screwed in a borehole (14) that is inserted in a fixed anchorage (16). The screw has a screw head (18), a cylindrical shaft (20) and three threads (22, 24, 26) that are arranged parallel to each other and extends helically over length of a shaft (20). Distance between the threads is selected, such that an adhesive (12) is distributed equally between a wall (32) of the borehole and the screw during screwing of the screw in the borehole, where the adhesive is selected from epoxy resin adhesive, methyl methacrylate adhesive or polyester adhesive.</p> |
