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针对不同类型岩石在不同高径比尺寸下进行单轴抗压试验研究,运用经过数据标度化方法改进后的灰色关联分析法,对岩石横向和纵向尺寸变化对抗压强度的影响进行灰色绝对、相对以及综合关联分析。利用灰色理论分析得知岩石横纵尺寸变化在众多影响抗压强度的因素中十分重要,并提出了其关联分析及结果运用。研究得知完整岩石纵向尺寸变化对抗压强度影响大于横向尺寸变化,岩样抗压强度基本随着岩石横向尺寸及纵向尺寸的增大而成增大趋势。
According to the uniaxial compressive tests of different types of rocks under different aspect ratio, the gray relational analysis method, which is improved by the data scaling method, is adopted to analyze the effect of rock lateral and longitudinal dimensional changes on compressive strength. , Relative and comprehensive correlation analysis. The gray theory analysis shows that the change of the rock size is very important in many factors that affect the compressive strength, and the correlative analysis and the results are put forward. The study shows that the influence of the change of the longitudinal dimension of intact rock on the compressive strength is greater than that of the lateral dimension, and the compressive strength of the rock specimen increases with the increase of the lateral and longitudinal dimensions of the rock.