FIELD: mining. SUBSTANCE: rock cores are drilled out along mine working from its roof and wall at certain intervals and placed in cylinders which have radial holes and inner channel corresponding to core diameter. Each core is placed into cylinder channel having length from core end plane exceeding calculated thickness of shotcreted support. Cylinder channel is filled with cementing mortar from distance equalling true distance from opening of nozzle of shotcreting machine to working surface. EFFECT: higher efficiency. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR FORMATION OF SHOTCRETE SUPPORT | 1990 |
|
RU2091585C1 |
| DEVICE FOR FORMATION OF SHOTCRETE SUPPORT | 1991 |
|
RU2091588C1 |
| DEVICE FOR ERECTION OF SHOTCRETE SUPPORT | 1991 |
|
RU2091586C1 |
| DEVICE FOR FORMATION OF SHOTCRETE SUPPORT | 1991 |
|
RU2091587C1 |
| METHOD FOR ERECTION OF WALL OF UNDERGROUND STRUCTURE | 1990 |
|
RU2021517C1 |
| METHOD FOR ERECTION OF WALL OF UNDERGROUND STRUCTURE | 1990 |
|
RU2021518C1 |
| METHOD FOR PREVENTION OF ROCK INRUSH INTO UNDERGROUND WORKING | 0 |
|
SU1810554A1 |
| SPUTTER-CONCRETE MIX | 0 |
|
SU1761718A1 |
| METHOD FOR ERECTION OF CEILING OF UNDERGROUND STRUCTURE | 1990 |
|
RU2030586C1 |
| METHOD FOR ERECTING ISOLATING STOPPING | 0 |
|
SU1640440A1 |
