FIELD: mining.
SUBSTANCE: invention can be used for attachment and heat insulation of mine workings mines, developing mineral deposits by underground method in permafrost rocks (cryolite zone). Heat insulation support includes laminar-concrete coating consisting of alternating layers of common and heat-insulating concrete. On both sides of last sprayed concrete layer there are additionally layers made from fireproof material, for example, biopyrene, changing its heat resistance at high temperature in development.
EFFECT: improved heat-insulating properties of support in emergency situations, for example, in case of underground fire, without changing its bearing capacity.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO SUPPORT HEADINGS WITH ANCHOR BOLTS | 2017 |
|
RU2639008C1 |
| METHOD OF HEAT INSULATION OF MINE WORKING | 0 |
|
SU1412407A2 |
| METHOD OF HEAT INSULATION OF MINE WORKINGS | 0 |
|
SU1521878A1 |
| METHOD OF ERRECTING HEAT-INSULATION SUPPORT OF MINE WORKING | 0 |
|
SU1571262A1 |
| METHOD OF ERECTING HEAT-INSULATING CONCRETE SUPPORT | 0 |
|
SU1719644A1 |
| UNIT FOR DRIVING A WORKING WITH SHORTCRETED SUPPORT | 0 |
|
SU1190047A1 |
| METHOD OF SUPPORTING MINE SHAFT COLLAR IN PERMAFROST ROCKS | 1996 |
|
RU2122119C1 |
| METHOD AND HEAT-INSULATING FORMS FOR CONCRETING MINE WORKINGS IN PERMANENT SOILS | 0 |
|
SU1548448A1 |
| METHOD FOR ISOLATION OF EMERGENCY AREA AT COAL BED UNDERGROUND DEVELOPMENT | 2010 |
|
RU2459085C2 |
| METHOD TO CONSTRUCT, EQUIP AND OPERATE STATIONARY WAITING CHAMBERS IN DEEP MINES OF NORTH | 2009 |
|
RU2412356C1 |
