Split anchor with expanding casing, anchoring bolts and tapered insert at fixed distance from support shows decreased dependence on borehole (sic) expansion diameter and strength of anchor base

摘要

Split anchor with an expanding casing (3) and anchoring bolts (2) for anchoring the casing, where the anchoring bolts have a support (6) and a tapered insert (7) at a fixed distance from the support (6), and which can open out from the support. The casing (3) is located between the support (6) and tapered insert (7). The casing can be compressed (sic) axially.