FIELD: mining.
SUBSTANCE: method for combined backfilling includes filling of space between supports with enclosing rocks of a mine, loose and hardening materials. After tunnelling and supporting of mines, the cavities are backfilled with loose materials. As the cavities are filled, perforated tubes are installed into the support space at the distance of 1-2 metres from each other, so that their free end protrudes into the mine space. Foaming pliant foam is supplied via the installed tubes into the support space for connection of the loose backfilling elements and filling of cavities between them.
EFFECT: increased stability of a mine due to reduction of action of massif shift and mine pressure at a support and even distribution of a load.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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SU1262046A1 |
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| METHOD OF BACKFILLING PAST-SUPPORT SPACE OF MINE WORKINGS | 0 |
|
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| METHOD OF SUPPORT OF MINE WORKINGS AND DEVICE FOR ITS EMBODIMENT | 1995 |
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| PROCESS OF FIXING OF ROCK WORKINGS | 1996 |
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| ERECTION METHOD OF EARTHQUAKE RESISTANT CONCRETE SUPPORT | 2012 |
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| METHOD AND ARRANGEMENT FOR PACKING PAST-SUPPORT SPACE | 0 |
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| METHOD OF SUPPORTING WORKING | 0 |
|
SU1040167A1 |
