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为了解加载方向对含两条共面非贯通裂隙岩石破坏特性和破坏强度的影响,以随机均布Voronoi图为基础,精细化地描述了裂隙岩石的细观结构,生成了7个不同裂隙倾角的数值试件,基于改进刚体弹簧法,对7个不同裂隙倾角的试件进行单轴压缩数值试验,并从宏观和细观两个尺度模拟了倾角不同的7个岩石试件的贯通模式、变形和强度特性。结果表明,当倾角为0°时,共面裂隙不贯通;当倾角为15°、30°、45°和90°时,共面裂隙间接贯通;当倾角为60°和75°时,共面裂隙直接贯通;裂隙岩石在强度上表现出明显的各向异性。
In order to understand the effect of loading direction on the failure characteristics and failure strength of rock with two coplanar non-through fractures, the mesoscopic structure of fractured rock is described in detail based on the random uniform Voronoi diagram. Seven different fracture angles Based on the improved rigid-body spring method, the uniaxial compressive tests of seven specimens with different fracture angles were carried out. The penetration modes of seven rock specimens with different dip angles were simulated from both macro and micro scales. Deformation and strength characteristics. The results show that the co-planar fissures can not penetrate when the dip angle is 0 °, and the co-planar fissures pass indirectly when the dip angles are 15 °, 30 °, 45 ° and 90 °. When the dip angle is 60 ° and 75 °, Fissures directly through; fissured rocks in the strength showed significant anisotropy.