FIELD: mining industry. SUBSTANCE: method includes driving of workings over contour of wall of underground structure at its floor 1 and roof 2. From the workings, vertical holes are drilled and rock mass is caved in zone for formation of raise 4. Caved rock mass is withdrawn, and at the level of lower end of raise, remaining rock mass is cemented with mortar 6 without filler, and raise 4 is filled with cementing mortar and filler. EFFECT: higher efficiency. 3 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR ERECTION OF WALL OF UNDERGROUND STRUCTURE | 1990 |
|
RU2021518C1 |
METHOD FOR ERECTION OF CEILING OF UNDERGROUND STRUCTURE | 1990 |
|
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METHOD FOR PREVENTION OF ROCK INRUSH INTO UNDERGROUND WORKING | 0 |
|
SU1810554A1 |
METHOD OF DAMPING SHOCK WAVES IN MINE WORKING | 0 |
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METHOD FOR DETERMINATION OF DIRECTION OF DRIVING OF NONRECTILINEAR WORKINGS | 1990 |
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DEVICE FOR DAMPING ENERGY OF AIR SHOCK WAVES | 1990 |
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METHOD OF MINING MINERAL DEPOSITS | 0 |
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METHOD OF WORKING INTERCHAMBER PILLAR | 1991 |
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METHOD FOR MINING PARALLEL CONTIGUOUS DEPOSITS | 0 |
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SU1789688A1 |
METHOD OF PROTECTION AGAINST AIR SHOCK AT INSTANT CAVING-IN OF ROCK | 0 |
|
SU905495A1 |
Authors
Dates
1994-10-15—Published
1990-12-04—Filed