rock quality designation meaning in English
岩石品指
岩石品质指标
岩石质量指标
Examples
- Standard test method for determining rock quality designation of rock core
测定岩石芯的岩石质量标号的标准试验方法 - Rock quality designation
岩石质量指标 - The quantification indexes that token weathered degree are primary velocity , borehole rqd ( rock quality designation ) , joint space , joint number and so on , and the unloading ones are primary velocity , joint opening , borehole penetrability and so on . the compartmentalization of different weathered and load - off zones according to quantification indexes tallies with the slope geo - stress computed by finite element method
其中研究风化分带的定量指标有纵波速vp 、钻孔rqd 、结构面间距与条数等，研究卸荷分带的定量指标有纵波速度、节理开度与钻孔岩体透水性，据此划分的不同程度风化、卸荷岩体与有限元计算的坝区河谷应力场具有良好对应性。