Research on the Redistribution Law of Lateral Mining Stress and the Bearing Characteristics of Section Coal Pillar in Extra-Thick Fully Mechanized Top-Coal Caving Mining

Table 1

Occurrence conditions of the coal seams.

Coal mine name	Tangjiahui Coal Mine
Administrative subordination	Ordos, Inner Mongolia
Main coal seam	Main mining coal seam
Coal seam thickness	Average 18.3 m
Coal seam dip angle	Average 2°
Coal seam depth	Average 520 m
Gangue inclusion	Contains 4–6 layers of gangue
Coal seam structure	Monoclinic structure