| 摘要 |
FIELD: mining. SUBSTANCE: method for working off steeply dipping strata includes excavation with columns, placing a series of flexible pneumatic balloons beyond mechanized timbering, moving mechanized timbering and a number of flexible pneumatic balloons after cleaning face, insulating working from supplied melted mixture and supplying melted mixture to worked out space. Mechanized timbering is moved by subsequent motion of base beam and excavating member with additional pushing away. A number of flexible pneumatic balloons are pushed away with insulating upper and lower sub-floor galleries. Cleaning works are carried out in opposite subfloor. EFFECT: decreased labour consumption, simplified technology of cleaning up and backfilling with mechanized excavation of steeply dipping strata. |
