JUSTIFICATION OF THE WIDTH OF STABLE COAL PILLARS BETWEEN EXTRACTION PANELS DURING THEIR PREPARATION AND MINING BASED ON THE RESULTS OF NUMERICAL SIMULATION
V. N. Fryanov1, L. D. Pavlova1, A. A. Isachenko2
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:134:"1Siberian State Industrial University, Novokuznetsk, Russia
2JSC “UCC “Yuzhkuzbassugol”, Novokuznetsk, Russia";}
Keywords: Working, computational experiment, strains, stresses, pillar
Abstract
A scientific approach to determining the width of stable coal pillars during the preparation and mining of extraction panels with a load of more than 15 thou t/day has been substantiated. The proposed procedure differs from the traditional one by taking into account the advance rate of stoping and development faces, the time of maintaining the development workings, the effect of dynamic support pressure during the hanging and caving of undermined roof rocks of neighboring extraction panels.
|
