| 摘要 |
FIELD: mining industry, particular, mine working support. SUBSTANCE: yielding anchor includes bar, bracing members, wedging member, supporting washer and tension nut. Novelty consists in that bar in lock part is made with plane-parallel two-sided recesses, bracing members are made in form of truncated cylinders with pointed projections and wedging members in form of wedges with thresholds and mounting tenons on the internal side to limit slipping of bracing members. EFFECT: provision of yield with large resistance due to limited slipping of bracing members relative to wedges of anchor lock. |
