DIN 22024-1989 标准详情
- 标准号:DIN 22024-1989
- 中文标题:硬煤矿开采的原矿材的勘测.坚岩石的拉伸强度的测定
- 英文标题:Investigations of the raw material in hard-coal-mining; determination of tensile strength on solid rock
- 标准类别:德国标准
- 发布日期:1989-02
The indirect determination of tensile strength of natural solid rocks are carried put for obtaining information relative to mine safety, mining technology, and coal preparation, viz. competence of the strata, rock pressure calculations, tool wear, cu
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