Исследована динамика обрушений кровли вслед за движущимся очистным забоем. Разработана геомеханическая модель для прогнозирования динамики обрушений и напряженного состояния массива в окрестности движущегося очистного забоя.
Roof caving in a longwall face has been investigated by discrete element method. It was discovered that the caving is a complex process that begins with separation and disintegration of adjacent rock layers under action of shear stress. Tensile stress acts at the final stage of the caving. New geomechanic model has been developed to simulate periodic roof caving and stress redistribution around advancing longwall face.