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DIN 21521-1:1990-07
Rock bolts for mining and tunnelling; terms
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Summary
The exactly defined terms contained in this standard are to serve unterstanding. They apply to design, construction, and testing of strata bolts used in mining and tunneling. If strata bolts are intended to be grouted, it is to be examined to which extent the stipulations of the standard covering rock bolts do apply.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 07/01/1990 |
| Page Count | 6 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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