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This standard applies to multi-section support arches for mining and tunneling, made from mining GI-profiles as per DIN 21541 for useful cross-secktions ranging from 21.7 m2 to 63 m2 (cross-sectional sizes B 21.7 to B 63). Dimensions, designations, and materials are specified.
| Author | DIN |
|---|---|
| Editor | DIN |
| Document type | Standard |
| Format | File |
| ICS | 73.100.10 : Tunnelling and tubing equipment
|
| Number of pages | 4 |
| Replace | DIN 21531-2 (1978-12) |
| Year | 1990 |
| Document history | DIN 21531-2 (1990-07) |
| Country | Germany |
| Keyword | DIN 21531;21531 |