METHOD FOR PREPARATION AND DEVELOPMENT OF EXTRACTION BLOCK OR PANEL WITH DIAGONAL CHAMBERS Russian patent published in 2024 - IPC E21C41/20 

FIELD: mining industry.

SUBSTANCE: invention can be used in underground development of potassium deposits. Method for preparation and development of extraction block or panel with diagonal chambers, consisting in the fact that the opening of the section of the mine field begins with the driving of additional exploration drifts along the upper developed formation by paired faces for 1.5 years before the beginning of mining operations for the entire length of the block or panel, allowing to perform a complex of works on additional study of the mined mineral mass. After 1.5 years after driving of exploration drifts, a stope block or panel is opened. Then conveyor and transport drifts are passed, in which, when the length is sufficient for mounting the flexible and elongated conveyors, geological exploration and geophysical investigations are carried out for the next unit or panel. After completion of works on additional study, flexible and elongated conveyors are mounted. Further, the block or panel is developed along the upper bed, during which further additional study of the developed massif is carried out for the next block or panel.

EFFECT: development of preparation and development of extraction block or panel with diagonal chambers with minimum number of development workings, reduction of time for carrying out preparatory works due to use of facilities providing continuous delivery to panel workings, as well as reduction of terms of performance of all necessary works on additional exploration of mine field sections.

1 cl, 4 dwg