Abstract
Relevance of the work is defined by the need of solid mineral deposits development by hydraulic borehole mining. The main advantage of the method is that the extraction of minerals could be carried out in difficult geological conditions, excluding tunneling of mine workings and quarries construction. The article presents a generalized and systematic classification of hydraulic borehole mining technological processes during pay zones development. According to the classification three groups of technological processes were defined: main, auxiliary and hydraulic borehole cutting head monitoring. The main technological processes are: rocks fracturing, suction and lifting of the slurry to the surface, delivery of the slurry to the slurry pump. Auxiliary processes include: cleaning of intake ports of slurry retrieval device, drilling of pilot hole and maintenance of mining chambers roof sustainability. To hydraulic borehole cutting head monitoring processes refer: operation modes control, tripping operation and rotation.
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