Discussion of subsidence mechanism and strata movement model about stripe mining under thick soil layer

Abstract：It considers that the models of strata movement can't explain the subsidence mechanism of rock and soil about stripe mining under thick soil layer after some researches.Based on the theoretical analysis and simulative tests of primary controlling factors and mechanism about surface subsidence, it discusses the composite medium model of strata and soil movement under thick soil layer about stripe mining.

Keyword：thick soil layer;stripe mining;mechanism;strata movement model;