FIELD: mining industry, construction, blasting operations in rocks of any water content. SUBSTANCE: explosive is fed into hydraulic insulating hose through charging hose and sleeve with their simultaneous rise as hydraulic insulating hose is filled with explosive during formation of explosive string, hydraulic insulating hose slides in hole from sleeve under action of mass of explosive. Water-carrying explosive is used in the capacity of explosive. Upper end of hydraulic insulating hose is mounted on sleeve for sliding after filling of hydraulic insulating hose with specified amount of water-carrying explosive. Length of hose in hole is assumed to be equal to height of string of water-carrying explosive as minimum and is not longer than depth of hole. EFFECT: improved technical and economical indices of process. 2 cl
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Authors
Dates
1999-06-10—Published
1997-06-24—Filed