Characteristics of Strata Behavior and Differentiated Control of Fully Mechanized Mining Working Face with Abnormal Roof

The roof control of a fully mechanized mining face has significant impact on coal extraction. Therefore, information about strata behavior and differentiated measures for abnormal roofs are needed. In the present research, we used ground pressure theory to calculate interval first periodic weighting working faces 11113, 11213, 11313 in Panbei mine. maximum support resistance required by three was calculated considering influence hard roof, fault zone, skip mode relationship between support–surrounding rock. addition, determined hydraulic taking into account lithology pressure, as well layout sequence face. order ensure safety mining, implemented laying mesh method, controlling providing side protection fault-affected area, using violent method advanced deep hole pre-split blasting under conditions. engineering practice showed that effective areas achieved these measures.