There are no analogues of the technology developed at RANIMI (former UkrNIMI NASU) for extracting coal deposits while ensuring the integrity of protected objects.
The technology for partial development of coal reserves is intended for more complete extraction of coal reserves in the course of protective coal pillars extraction with no damage caused to the protected objects, mine workings, buildings and structures on the soil surface.
Sphere of Application:
safety pillars of various purposes with the following parameters:
Seam thickness, m 0.6-0.9
Seam inclination, deg. 0-18
Coal cutting strength, kN/m 350 max
Jude length, m 100 max
Seam gas content, m3/ton of ash free dry weight 20 max
Hazardous of spontaneous combustion
are not prone to spontaneous combustion
Hazardous of emissions
safe and threatening ones
Basic technical characteristics:
more than 40% of coal from the reserves classified as losses is extracted.
The introduction of auger boring technology for coal pillars extraction ensures the integrity of protected objects, solves the tasks of providing for a more complete extraction of coal reserves and increasing the production safety and profitability.
