FIELD: mining.
SUBSTANCE: invention refers to expansion-shell anchor bolts used as a suspension mount. The expansion-shell anchor bolt has a connecting member (11) for split-type interaction with expanding element (10) for expansion of anchor bolt (7) and with element (16) for suspension, made so that it can be connected with the anchor bolt. The overall dimensions of the connecting member allow inserting it into the borehole. The invention makes it possible to develop an improved anchor bolt for suspension with minimal stress concentration in the bolt and to simplify the operation of inserting the same into the rock.
EFFECT: developing an improved anchor bolt for suspension with minimal stress concentration in the bolt and simplification of the operation of inserting the same into the rock.
9 cl, 6 dwg
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