Derived Dynamic Disasters of Large Scale Mined-out Area for West Coal Mines

It is the most important research for west coal mining presently to control the derived dynamical disasters of large scale mined-out area. In order to obtain reliable evidence to control the disasters, some characters, causes and essentials were analysed. The result shows that a technology based on digital monitoring and predicting can control the derived dynamical disasters of large scale mined-out area for west coal mines.