DIN 22024:1989
硬煤矿开采的原矿材的勘测.坚岩石的拉伸强度的测定
Investigations of the raw material in hard-coal-mining; determination of tensile strength on solid rock
- 标准号
- DIN 22024:1989
- 发布
- 1989年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN 22024:1989
- 适用范围
- 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, cutting performance of roadheading and coalwinning equipment, dimensioning of crushers, etc.