FIELD: mining industry, particularly for developing outburst-dangerous areas of potassium-bearing beds by long cleaning bottom-holes with hydromechanized systems.
SUBSTANCE: method involves removing annular clay parts and building outline of annular clay parts when cleaning bottom-hole reaches outburst-dangerous area; determining distance between lava bottom-hole line and annular clay arch part; measuring chord length of annular clay part segment; determining position of outburst-dangerous area center; carrying out forward excavation at an angle to horizon determined from a given mathematical equation taking into consideration above parameters; performing outburst initiation by blasting bore charges and discharging salt-and-gas flow through channel cavity into exhausted space.
EFFECT: possibility of full potassium-bearing bed development, increased operational safety, reduced influence of salt outburst on hydromechanized systems, increased ore quality.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREVENTION OF SUDDEN OUTBURSTS OF SALT AND GAS | 1993 |
|
RU2090757C1 |
| METHOD OF CONTROL OF GAS DYNAMIC PHENOMENA IN UNDERGROUND WORKINGS | 1996 |
|
RU2100613C1 |
| METHOD FOR CONTROL OF SUDDEN OUTBURSTS OF SALT AND GAS | 1993 |
|
RU2071567C1 |
| METHOD OF PREVENTING SPONTANEOUS OUTBURSTS OF SALT AND GAS | 0 |
|
SU1627728A1 |
| METHOD FOR MINING POTASSIUM OUTBURST-PRONE BEDS | 0 |
|
SU1795102A1 |
| METHOD OF MINING BEDS | 0 |
|
SU1716136A1 |
| METHOD FOR DRIVING MINE WORKINGS IN SEAMS PRONE TO COAL AND GAS OUTBURSTS | 1992 |
|
RU2069763C1 |
| METHOD FOR MINING THICK SALT OUTBURST-PRONE SEAMS WITH COMPLICATED HYPSOMETRY OF THEIR OCCURRENCE | 1991 |
|
RU2015329C1 |
| METHOD OF PREVENTING SUDDEN OUTBURST AT EXCAVATING STEEP SEAMS | 0 |
|
SU1023167A1 |
| METHOD FOR DETERMINING THE OUTBREAK HAZARD OF SALT ROCKS | 2022 |
|
RU2796711C1 |
