| 摘要 |
FIELD: mining, particularly to support mine contour. ^ SUBSTANCE: anchoring bolt comprises thread for nut receiving formed at bolt end and includes load-bearing rod with profiled surface provided with depressions and auger at head end thereof. The rod is made of fiberglass plastics and has support member connected to head end thereof. The support member has auger made of glass-nylon composite. Diameter of bolt end exceeds load-bearing rod diameter in all other sections thereof. ^ EFFECT: possibility to create anchoring bolt destructible by cutter-loader auger, reduced costs, possibility to secure the anchoring bolt by self-activating method along with functional properties retaining. ^ 5 cl, 3 dwg |
