The existence of parallel joints has an impact on the size effect of the uniaxial compressive strength of rock, but the relationship is yet to be obtained. In this paper, the influence of parallel-joint spacing on the size effect and characteristic size of rock uniaxial compressive strength is studied by establishing five types of parallel-joint-spacing simulation schemes. The influence of parallel-joint spacing on the size effect of rock uniaxial compressive strength is explored by analyzing the stress-strain curves of rocks with different parallel-joint spacings and rock sizes. The relationship between the uniaxial compressive strength and the size of the rock with parallel joints and its special mathematical model are obtained, and the particular form of the compressive-strength characteristic size and parallel-joint spacing is obtained.

中文翻译：

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平行节理间距对岩石单轴抗压强度的尺寸效应[J].

平行节理的存在对岩石单轴抗压强度的尺寸效应有影响，但尚未得到相关关系。本文通过建立五种类型的平行缝间距模拟方案，研究了平行缝间距对岩石单轴抗压强度尺寸效应和特征尺寸的影响。通过分析不同平行节理间距和不同岩石尺寸的岩石的应力应变曲线，探讨了平行节理间距对岩石单轴抗压强度尺寸效应的影响。得到了单轴抗压强度与平行节理岩石尺寸的关系及其特殊的数学模型，得到了岩石的抗压强度特征尺寸和平行节理间距的具体形式。