Numerical Simulation Analysis of "Two-zone" Developing Height in Mining 1011 Face of Wugou Colliery

Applying FLAC to simulating movement of roof caused by mining on the basis of analyzing geological conditions of Wugou Mine Field.Damage rule of overlying rock strata was researched and height of "Two-zone" was confirmed with this method.Observation result by simple hydrology method tested simulation result and the height and development rule of "Two-zone" in 1011 Mining Face were obtained.