FIELD: mining.
SUBSTANCE: invention relates to laboratory equipment and can be used for simulating processes, occurring in wells blasting chamber during blasting operations. Summary: test bench is made in form of C-shaped frame (1) with support platform (5), on which blast hole simulator (6) is installed, made from metal pipe. In frame (1) lower part screw pair is installed, which nut (2) is movably rests on frame (1), and screw (3) is equipped with platform (4) on upper end. On platform (4) shutoff cone (9) is arranged. Between shutoff cone (9) and blast hole simulator (6) model material (10) in form of crushed stone is backfilled. Between frame (1) and blast hole simulator (6) upper part stemming ejection resistance measuring device (8) is arranged.
EFFECT: technical result is increase in experiments accuracy.
1 cl, 1 dwg
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