METHOD FOR MINE FIELD OF COAL BED DEVELOPMENT Russian patent published in 2007 - IPC E21C41/18 

FIELD: mining, particularly to develop mine field of coal beds with the use of mechanized complexes.

SUBSTANCE: method involves crossing mine field with intermediate and flank excavations, alternating end belt and air headings to create pillars along strike; forming bypass air excavations between air and belt headings; forming diagonal face entry between end faces of air and belt headings; cutting pillars with mechanized complex along with mechanized complex rotation relatively end faces of headings; reversing mechanized complexes conveyer and transporting coal along diagonal face entry along with mechanized complex rotation with respect to end face of air heading. Intermediate excavations extend to trajectories of last end excavations connected with each other. Flank excavations are connected with each other through extreme headings with extreme mine field pillar cutting with mechanized complex for the full mine field width with mechanized complex rotation at flank excavations. Additional diagonal face entries are formed between intermediate excavations and extreme headings.

EFFECT: decreased labor inputs for mine field cutting.

2 dwg