FIELD: mining.
SUBSTANCE: method involves mechanised development of lower bed with softening of formation under roof and with further release of coal from it. In formation under roof there are intermediate entries located perpendicular to bottomhole of longwall; after that it is softened by vibration impact on it by means of vibroseismic vibration sources. Vibration sources are mounted in intermediate entries in support pressure area at the distance of not less than 15-20 m from the longwall bottomhole.
EFFECT: reducing losses and dilution of coal owing to its unobstructed release from formation under roof through openings of enclosures of sections of powered support.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING A THICK SEAM WITH UNDERROOF COAL DISCHARGE | 2015 |
|
RU2593833C1 |
| METHOD FOR DEVELOPMENT OF A THICK GENTLY SLOPING BED WITH RELEASE OF COAL OF UNDERBURDEN THICKNESS | 2019 |
|
RU2709904C1 |
| METHOD FOR DEVELOPING A LARGE FLAT-LYING SEAM WITH THE RELEASE OF COAL UNDER THE COVER | 2021 |
|
RU2760270C1 |
| METHOD FOR DEVELOPING A THICK SEAM WITH TOUGH COAL AND DIFFICULT ROOFING ROCKS | 2023 |
|
RU2799293C1 |
| POWERED SUPPORT SECTION WITH COAL DISCHARGE DEVICE | 2019 |
|
RU2709894C1 |
| METHOD OF EXCAVATION OF THICK FLAT COAL BEDS | 2014 |
|
RU2563003C1 |
| SECTION OF MECHANIZED SUPPORT FOR EXTRACTION OF MASSIVE FLAT BEDS WITH COAL OUTPUT | 2003 |
|
RU2242616C1 |
| METHOD FOR DEVELOPMENT OF POWERFUL STEEP BED WITH DISCHARGE OF COAL OF OVERLYING FORMATION | 2019 |
|
RU2709903C1 |
| METHOD FOR DEVELOPING THICK COAL SEAM WITH RELEASE OF COAL OF UNDER-ROOFING SERIES AND SCRAPER CONVEYOR GRID FOR ITS IMPLEMENTATION | 2023 |
|
RU2800180C1 |
| METHOD FOR DEVELOPING A POWERFUL FLAT SEAM WITH THE RELEASE OF COAL OF THE UNDERLYING THICKNESS AND A MECHANIZED SUPPORT FOR ITS IMPLEMENTATION | 2021 |
|
RU2763205C1 |
