Abstract: In view of research situation of the fully mechanized top-coal caving, the simulation test model for fully mechanized top-coal caving was presented.With the top-coal caving process promoted, the variation of top-coal subsidence and abutment pressure was measured and the ground pressure behavior of fully mechanized top-coal caving was analyzed consequently.The test results showed that the top-coal subsidence improved slowly, nearly sharply, moderately and sharply.The peak abutment pressure initiated to decay and the periodic weighting of basic roof appears relatively moderate.Due to the action of “cushion” at the upper support, the ground pressure appears moderately.

Key words: Fully mechanized top-coal caving face, Ground pressure, Simulation test, Abutment pressure