FIELD: mining.
SUBSTANCE: anchor includes load-carrying pin with support head fixed on the end, bushing from loose material with flexible bonding agent of particles and longitudinal hole, support element enveloping the load-carrying pin, support elements and nut outside the well. Support element is made in the form of mutually twisted wires with separated ends thrust against the well walls.
EFFECT: improving operating reliability of anchor at its relatively low cost; reliable operability of the bushing in water-flooded minings and in zones with intense fracturing of rocks.
3 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ANCHOR | 2008 |
|
RU2374450C1 |
| BOLT | 2006 |
|
RU2321749C1 |
| ROPE ANCHOR | 2008 |
|
RU2383739C1 |
| ANCHOR WITH MINERAL FILLER | 1997 |
|
RU2166635C2 |
| FLEXIBLE ANCHOR | 1997 |
|
RU2166636C2 |
| ROOF BOLTING AND PROCESS OF ITS ERECTION | 2000 |
|
RU2169842C1 |
| MINE SUPPORT METHOD AND DEVICE | 2006 |
|
RU2320875C1 |
| METHOD OF FIXING OF ANCHOR AND DESIGN OF ANCHOR | 1999 |
|
RU2175063C2 |
| METHOD OF FIXING OF ANCHOR BOLT AND DESIGN OF ANCHOR BOLT FOR METHOD EMBODIMENT | 1997 |
|
RU2169265C2 |
| ROOF BOLTING | 2001 |
|
RU2182972C1 |
