EXCAVATION METHOD OF THICK FORMATIONS OF MINERAL RESOURCES Russian patent published in 2008 - IPC E21C41/16 

FIELD: mining engineering.

SUBSTANCE: debugging area of slope mine is divided into blocks of mineral resources. Blocks are prepared to debugging carrying out development workings 4-7. Blocks debugging are made consequently with long faces, equipped with scouring mechanised systems 2, without leaving between blocks mineral resources pillars. After termination of scouring works in long faces mechanised systems 2 are dismantled. At closing stage of block debugging after face finding 1 in one line with selvage a-b of mineral resources massive, appeared while block debugging which has the common boundary o-k with debugging block, scouring works are continued till upper roof rock fall in developed face bay and till face rock refuse 1 on its middle bay from fraction openings 3, appeared in upper roof while rock falling, on the distance b, equal to the width of face area.

EFFECT: costs decreasing connected with accomplishing of assembling-dismantling works, as well as a time cutting of their accomplishing and safety improving.

3 dwg