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采矿用岩体分值(MRMR)分类法是为适应各种采矿要求于1974年在 CSIR 地质力学分类法的基础上发展而来的.两者间的根本区别在于 MRMR 分类法认为原岩分值须根据开采环境进行调整,以便最后得出的分值(MRMR)可用于矿山设计,调整的参数有风化,次生应力,节理方位和爆破影响。也可用岩体分值(RMR)确定出通常的岩体强度(RMS),然后再加以调整,得出用于设计的岩体强度(DRMS).这种分类法用途广泛,岩体分值、采矿用岩体分值及用于设计的岩体强度可为矿山设计提供有益的指导.但是,在某些情况下则需要进行更为详细的调查,即在某一情况下需将着重点放在本方法的某些特定参数上.在采场或矿柱内外,对具有连续性的狭窄软弱的地质特性必须加以区别,分别打分.本文将论述打分的方法,并提出本方法用于矿山设计的实例.
The Mining Rock Mass Score (MRMR) classification was developed to adapt to various mining requirements based on the CSIR Geomechanical Taxonomy in 1974. The fundamental difference between the two is that the MRMR classification considers the original rock score Adjustments should be made to the mining environment so that the resulting MRMR can be used for mine design with adjusted weathering, secondary stress, joint orientation and blasting effects. Rock mass fraction (RMR) can also be used to determine the usual rock mass strength (RMS) and then adjusted to obtain the rock mass strength (DRMS) used in the design. This classification is used for a wide range of applications, Mining scores for rock mass and the strength of the rock mass used in the design may provide useful guidance for mine design, but in some cases more detailed investigation is needed, with emphasis placed in one case In some specific parameters of the method, the geological characteristics of continuous and narrow slenderness must be distinguished and scored respectively in stope or pillars. This paper will discuss the method of scoring and put forward the method for mine design Example.