FIELD: explosives.
SUBSTANCE: method of charge dispersal in the well involves suspension of bore-hole gate at the specified depth and its locking. At that, as the bore-hole gate there suspended is hollow reservoir of biconical shape, which is made from plastic mass, and it is locked by filling to the well of several portions of crushed stone with particle size of 10-20 mm.
EFFECT: easier formation of air gap in the explosive charge and higher reliability of charge dispersal by using the mechanical bore-hole gate.
2 dwg
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