This paper introduces the general situation of working face,sums up the support work management,the roof control and precautious measures adopted for single hydraulic prop in thinner thick coal seam with large dip angle,and in the light of the problems existing in the application of single hydraulic prop,put forward some improvement suggestyions.

Particle flow analysis on mechanized top-coal caving in steep thick seam;

Distinct element analysis on coal movement law and failure mechanism during mechanized top-coal caving in steep thick seam;

The paper study thin and thick seam with steep dip mining technique of 7417 fully mechanized top-coal caving face,in Zhangshuanglou coal mine,introduce to coal mining method and equipment anti-skid successful experience,provide reliable use for reference mining of resemble face.

It's better that taking single seam mines coal in deep inclined thin coal seam in security and economy by comparison in the same condition.