FIELD: mining. SUBSTANCE: flexible shield has wood flooring boards, tightened by longitudinal metal belts from channels and angle pieces, braces fastened to connecting members secured to beam end faces. Installed between flooring boards and braces are anchor props. Connecting members are made in form of a pair of angle pieces with one row of flooring boards or U-shaped crossbar with two rows of flooring boards. Braces are installed over two beams of flooring and fastened to centers of connecting members. Braces may be connected by channel laid with flanges upward or by shelves with anchor props installed between them. EFFECT: higher efficiency. 2 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SHIELD FOR MINING THICK STEEP BEDS | 0 |
|
SU1557330A1 |
| SHIELD FOR WORKING OF THICK STEEP SEAMS | 1991 |
|
RU2011837C1 |
| METHOD OF DOWNWARD WORKING OF KIMBERLITE PIPE BY POWERED MINING COMPLEX AND DESIGN OF FLEXIBLE GUARD ROOFING | 1998 |
|
RU2155867C2 |
| TUNNEL SHIELD FOR DEVELOPMENT OF STEEPLY PITCHING BEDS | 0 |
|
SU1717838A1 |
| 0 |
|
SU112379A1 | |
| TUNNEL SHIELD FOR MINING THICK STEEPLY DIPPING SEAMS | 0 |
|
SU1803579A1 |
| SHIELD SUPPORT FOR STEEPLY DIPPING SEAMS | 1993 |
|
RU2078214C1 |
| ARCH SHIELD FOR MINING STEEP COAL SEAMS | 0 |
|
SU1606708A1 |
| SHIELD COVER FOR MINING OF THICK STEEP SEAMS | 1996 |
|
RU2111364C1 |
| SHIELD FOR WORKING THICK SLOPING BEDS | 0 |
|
SU968434A1 |
