Technologies for Increasing the Efficiency of Hard Mineral Mining by Hydraulic Fracturing of Rocks
S. V. Serdyukov, A. V. Patutin, T. V. Shilova, A. V. Azarov, L. A. Rybalkin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: гидравлический разрыв пласта, горный массив, напряженное состояние, противофильтрационный экран, интенсификация дегазации, трещина, Hydraulic fracturing, rock mass, stress state, impervious screen, intensification of degassing, crack
Abstract
New methods and technical solutions have been developed to intensify the degassing of coal seams based on fixed bridges and formation of impenetrable protective screens in the vicinity of a mine opening. The features of applying local hydraulic fracturing to measure the stresses acting in a rock mass are investigated. Prototypes of devices for the equipment delivery along the horizontal section of the formation hole and implementation of transverse hydraulic fracturing due to the tangential load applied near the isolated interval have been created.
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