Analysis of Mechanized Caving Mining Surface Movement and Deformation Laws in Guandi Mine

The surface movement and deformation observation stations of 29401 working face were designed according to its geological and mining conditions. Combined with geological and mining conditions of the working face, the laws of surface movement and deformation, advance affect, angle parameters, as well as probability integral prediction parameters in the conditions were obtained by analyzeing the dynamic surface movement and deformation curves of the strike and dip observation lines. The mountain slip has a larger impact on the mining area of surface movement and deformation and especially for the horizontal movement through the analysis of the characteristics of dynamic subsidence and horizontal movement curve.