METHOD OF DIAGNOSING DANGEROUS SITUATIONS IN DEEP MINING AND FORECASTING PARAMETERS OF FISSURING ZONES FORMED BY FRACTURING Russian patent published in 2012 - IPC E21F5/00 G01V1/30 

FIELD: mining.

SUBSTANCE: set of inventions relates to safe deep mining of solid hydrocarbons. Proposed method proceeds from continuous ground monitoring of geodynamic state of massif and seismic activity of bed roof and bed working on surface area covering bed headway in real time by passive prospecting seismology methods. Obtained results are automatically processed to isolate zones with abnormally-high seismic energy emission, define their area and depth coordinates so that map of anomalies of seismic emission. Maximum magnitudes of seismic emission are used to define coordinates of slope ratio of coal bed fracturing well. Development of main cracks is forecast from the well by the method of double refraction of transverse waves from surface excitation source. After fissuring, direction of main crack development in face bulk is controlled. Area is drilled from surface in directions of main crack development to pump methane out from the wells. With seismic emission decreasing, possibility to extract coal is forecast.

EFFECT: higher safety and intensity of coal extraction.

3 cl, 3 dwg