关键词: 大倾角, 大采高, 覆岩移动, 力学分布

Abstract: Overburden movement and mechanics characteristics of steeply dipping large mining height face are more complex, it’s necessary to study overburden movement and mechanics character. Based on numerical simulation and field measurement, overburden movement and mechanics are analyzed. The results show that higher and lower strata of different area show different displacement forms - lower strata displacement profile shifted to the lower face area, higher strata displacement profile shifted to the upper face area, vertical displacement and top pressure of middle and upper face area are bigger than lower area, the upper and lower end are easy to form stress concentration zones in different positions, and the stress at the lower end is concentrated near the roof area, and the stress at the upper end is concentrated near the floor area, The overburden movement and the top pressure are proportional to the mining height.