FORECASTING THE CHARACTER OF THE TOP PARTICIPATION OF THE COAL PLATE UNDER THE CONDITIONS OF GREAT DEPTH BY EMPIRICAL AND NUMERICAL METHODS
I. F. Oge
Mugla Sytky Kochman University, Mugla, Turkey
Keywords: Отработка длинными забоями, обрушение верхних пачек угольного пласта, анализ с использованием метода конечных элементов, кривые реакции грунта, индекс обрушаемости, Longwall mining, collapse of the upper coal seam packs, analysis using the finite element method, soil reaction curves, fracture index
Abstract
The development of the coal seam long faces with the collapse of the upper packs, characterized by high productivity, due to the presence of powerful coal seams. The study is aimed at predicting the characteristics of the collapse of the upper part of a deep-seated powerful coal seam of the lignite basin in Soma, located in Eastern Turkey. For comparative purposes, the data obtained for active coal mines for long face mining with the collapse of the upper layers, located at a depth of 100 - 400 m. In the future, coal mining in the deep-seated sectors is expected. The upcoming work on coal mining by longwall faces can be attributed to the unique, since the mining will occur at a depth of 700 - 1200 m in layers of different thickness. Empirical and numerical methods are used in this study. Numerical simulation provides a practical basis for constructing soil response curves, with the use of which the results of research at existing and projected mines can be assessed and compared with the subsequent conclusion about the features of the collapse of the upper part of the coal seam.
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