METHOD FOR MINING INCLINED ORE BODIES Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: this can be used for mining inclined ore bodies primarily of medium thickness lying in everfrost rock matter. According to method, formed in lower part of chamber adjacent to ore-receiving workings is antifriction for example ice covering. Length in dipping of chamber floor section provided with antifriction covering is determined as difference between inclined length of chamber and minimal possible in given conditions distance of free throwing in air of broken ore. Formation of antifriction covering is started after work face of chamber advanced through distance corresponding to minimal possible in given conditions distance of throwing broken ore in air. Application of aforesaid method allows for reducing roughness of chamber floor and minimizing loss of broken ore. EFFECT: higher efficiency. 1 cl, 2 dwg