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在对8种岩石矿物成分XRD分析和使用三维白光干涉仪对其抛光表面进行表面形貌表征的基础上,在自行设计的试验装置上,对自然、饱水和干燥状态下8种岩石试块的摩擦系数进行了试验研究。试验结果表明:抛光岩石表面的摩擦系数和其矿物成分相关。在多矿物组成成分的硅酸盐岩中,饱水与自然状态时的摩擦系数增加幅度大于干燥和自然状态时摩擦系数减小的幅度。在多矿物组成成分的碳酸盐岩中,饱水与自然状态时的摩擦系数增加幅度小于干燥和自然状态时摩擦系数减小的幅度。在3种不同状态下单矿物岩石的摩擦系数比多矿物岩石的摩擦系数变化幅度大。
Based on the XRD analysis of eight kinds of rock minerals and the surface topography of the polished surfaces using the three-dimensional white light interferometer, eight kinds of rock test blocks in natural, saturated and dry conditions were tested on a self-designed test device The friction coefficient of the experimental study. The experimental results show that the friction coefficient of polished rock surface is related to its mineral composition. In silicate rocks with multi-mineral composition, the increase of friction coefficient between saturated and natural state is larger than that of dry and natural state. In carbonate rocks with multi-mineral composition, the increase of friction coefficient between saturated water and natural state is less than that of dry and natural state. In three different states, the friction coefficient of single mineral rock is larger than the friction coefficient of multi-mineral rock.