DIN 21521-2-1993 标准详情
- 标准号:DIN 21521-2-1993
- 中文标题:矿井和隧道支护用锚杆.钢制锚杆的通用规范.试验、检验方法
- 英文标题:Rock bolts for mining and tunnel support; general specifications for steel-bolts; tests, testing methods
- 标准类别:德国标准
- 发布日期:1993-02
The document applies to rock bolts made of steel. The document specifies basic regulations for design and setting of rock bolts as well as testing methods for the properties of said bolts in as supplied conditions and after strata bolting. By the cho
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