FIELD: mining.
SUBSTANCE: when developing thin and middle seams by a stall-and-brest system leaving rock in a mine, at first a complex of panel and level excavations is carried out, a mine section is prepared by pilot method of a transport entry driving in the beginning in the form of a coal chamber. Then the chamber section is increased up to the entry with due to excavation of bearing strata at both sides of the mine section. Then cavities are drilled in the sight pillar below the transport entry at the angle to it, where rock of previous explosion of bearing strata is laid. Chamber driving is carried out simultaneously with driving of a throughcut in a coal massif and arranged at the lower border of the future coal and rock strip under the transport entry, connecting both mines with crosscuts.
EFFECT: improved reliability of flow chart of long faces preparation leaving rock from mining in place of its production.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MINING OF INCLINED MINING FIELDS ON THIN AND MEDIUM-THICK FLAT-DIPPING COAL SEAMS | 2001 |
|
RU2206743C2 |
| METHOD FOR EXTRACTING BEDS OF LOW AND AVERAGE THICKNESS USING LONG COLUMN EXTRACTION SYSTEM ALONG COURSE, WITH ABANDONMENT OF ROCK IN MINE | 2004 |
|
RU2287687C2 |
| METHOD FOR EXTRACTION OF SLANTED EXTRACTION FIELDS ON GENTLY SLOPING COAL BEDS | 2003 |
|
RU2248447C1 |
| METHOD OF MINING OF INCLINED MINING FIELDS ON MEDIUM-THICK FLAT-DIPPING COAL SEAMS | 2001 |
|
RU2206742C2 |
| METHOD FOR EXTRACTING FORMATIONS OF LOW AND AVERAGE POWER BY CONTINUOUS WIDE EXTRACTION SYSTEM, WITH ABANDONMENT OF ROCK IN SHAFT | 2004 |
|
RU2299325C2 |
| METHOD FOR EXTRACTION OF SLANTING EXTRACTION FIELDS AT SLOPING COAL BEDS | 2003 |
|
RU2247243C1 |
| METHOD FOR LOW-THICKNESS AND MEDIUM-THICKNESS SEAM DEVELOPMENT ALONG STRIKE WITH ROCK LEAVING IN MINE | 2005 |
|
RU2305187C2 |
| 0 |
|
SU114049A1 | |
| METHOD FOR EXTRACTING LOW AND AVERAGE THICKNESS BEDS ACROSS THE RUN WITH ROCK LEFT IN MINE | 2005 |
|
RU2301333C2 |
| 0 |
|
SU350961A1 |
