Based on in-situ observation about stress in inclined coal pillar for fully-mechanized top-coal caving face of thinner coal seam and the elastoplastic limit equilibrium theoryt,aking the thickness and angle of coal seam into account,the results and relations are analyzed systematically and completely;and the formula and the distribution laws of stress peak value are obtained.

Practices and experiences on fully mechanized caving tech. in relatively thinner thick coal seam;

The practices and experiences on mining by the light supported fully mechanized caving method and the technical problems encountered in mining in the relatively thinner thick coal seam(i.

Practice on high efficient mining technology in thin seam;