Assessment of various f actors significance for topographic deformations above mines using multivariant statistics

Abstract

In the process of underground mining considerable soil displacements take place above mines, the land surface being sagged, locally collapsed, with steps and ruptures at the periphery. The surf ace deformations pattern varies widely in space and time and depends on interaction of numerous natural and technogenic factors. A quantitative assessment of individual natural factors significance for the character and rate of topographic deformations have been attempted using multivariant statistics. Most significant groups factors are identified which are to be considered when predicting surface deformations at mineral deposits which differ in engineering-geomorphic conditions of mining.