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利用精度高达0.5μm的Talysurf CLI 2000三维表面激光形貌仪,对经矿井深部地下水作用前后的5种不同岩性的岩石试件进行形貌扫描,探讨试件表面的微观形貌的变化特征并对12个形貌参数作出定量分析对比。试验结果发现,水-岩作用后岩石表面形貌高度的离散性、偏离基准面的程度、粗糙程度变大,高度的分布概率更为集中,由负偏态变为正偏态且高度分布的对称性好于作用前。峰点算术平均曲度Ssc都有规律地降至0.62附近,岩石表面的高差减小,更具协调性。水化作用与水解、溶解作用同时发生,但水化作用效应大于其水解、溶解作用效应。
Using the Talysurf CLI 2000 three-dimensional surface laser profilometer with an accuracy of up to 0.5 μm, the morphological changes of five rock samples with different lithologies before and after the action of deep groundwater in the mine were investigated. Quantitative analysis and comparison of 12 topographic parameters. The test results show that after the water-rock interaction, the dispersion of rock surface topography, the deviation from the reference plane, the roughness increase, the distribution probability of height is more concentrated, and the negative skewness changes to positive skewness and highly distributed Symmetry is better than before. The arithmetic mean curvature Ssc of the peak points regularly decreases to around 0.62, and the height difference of the rock surface decreases and is more coordinated. Hydration and hydrolysis, dissolution simultaneously, but the hydration effect is greater than its hydrolysis, dissolution effect.