Abstract: Strip mining is one of the efficient measures for controlling ground subsidence and mining damage. However, there is insufficient study on the ground movement law in strip mining of multiple coal seams, especially for inclined multiple coal seams. Its study is of both great theoretical significance and practical value. Therefore, a systematic study of the effect law of different mining depths, widths, seam spaces and the space positional relation between upper and lower coal pillars on the surface ground subsidence and horizontal movement is carried out by means of PLAC numerical simulation software. As a result, a comprehensive function relation between the maximum subsidence and the maximum horizontal movement of ground surface with the mining depth, width and seam space and their respective staggered values is established.

Key words: Inclined multiple coal seams, Strip mining, FLAC, Numerical simulation, Surface movement