METHOD FOR STEEPLY DIPPING ORE BODY DEVELOPMENT Russian patent published in 2008 - IPC E21C41/22 

FIELD: mining, particularly methods of underground mining.

SUBSTANCE: method for ore body having low and medium thickness development by mine sections involves preparing, cutting and drilling wells from drilling rooms; charging wells with explosive and blasting thereof; drawing ore from blocks and supporting goof. As mine section stock is excavated breakage heading line is advanced in several sections along ore body propagation line. Drilling rooms extend along maximal ore body shape variation line. Ore in section is cut in several layers transversal to longitudinal drilling room axis. Said layers have constant dimensions measured in direction of maximal ore body shape variation line. Layer dimensions in direction of maximal ore body shape variation line are divisible by line of least resistance. Layers have variable dimensions in direction of minimal ore body shape variation line and are determined to provide completeness of curvilinear ore body area cutting with linear stopping zone section.

EFFECT: increased labor productivity and mechanization degree due to improved self-moving or monorail drilling rig usage.

5 cl, 22 dwg