Abstract:

This paper is study on the regularity of strata behavior in 20104 working face. According to the 20104 fully mechanized caving face’s specific geological and mining conditions of Wang Jialing coal mine take the method of field measurement. The results showed that the coal mining face would have a sectional pressurized phenomenon, central pressure strength and first-come, subsequently ends to pressure less intensity; the work resistance of working face mainly between 18.2 ~ 33.0MPa ; the middle bracket dynamic load significantly during the pressure, and the central part of the frame work resistance close to the rating, finally research can lay a foundation for the fully mechanized caving face mining in other mines.

Key words: thick coal seam, fully mechanized coal caving coal, strata behavior regularity, work resistance