In view of steeply inclined seam roadway support status quo,with the specific engineering practice problem,used similar material simulation test to have the contrast study on steeply inclined seam roadway applied Isteel support,bolt support and bolt-cable-beam support under same condition.

It has very strong reference meaning to building the morden coal mining working face with high yield and high efficency in the steeply inclined and much thicker coal bed.

The characters of steeply inclined mineral deposit of coalpyrite accompanying bed and of mineral processing are analysed in this paper.

Explosive technique of top coal caving in roadways of medium-thickness and high-thickness steep seam;

The roof fracture of steep seam manifests obvious random characteristic owing to irregularity of mining boundary and different stowing feature of breakage waste along faceline as well as geological and technical factors in pitch mining of longwall face.