Uniaxial compression simulation tests were conducted on composite rock containing weak interlayers, investigating the influence of the number of weak interlayers and dip angle (θ = 0°90°) on the physical and mechanical parameters, anisotropy, and failure modes of the rock. The results demonstrate a correlation between the uniaxial compressive strength and elastic modulus with the number of weak interlayers and dip angle. The axial strain of the peak strength generally increases with an augmented number of weak interlayers, exhibiting a pattern of increase, decrease, and subsequent increase with varying dip angles. Microcracks predominantly originate in the interface and loading plate area, extending to the weak interlayer and adjacent regions, forming continuous fractures until the rock undergoes complete failure. The number and dip angle of the interlayer not only impact the physical properties but also govern the failure mode of the rock. The increase in weak interlayers shifts the postpeak curve from brittle to ductile damage, resulting in diverse final failure modes at different dip angles. A total of five distinct final failure modes were identified by examining the macroscopic fracture surface of the rock.

对含软弱夹层的复合岩石进行单轴压缩模拟试验，研究软弱夹层数量和倾角（θ = 0°90°）对岩石物理力学参数、各向异性及破坏模式的影响。结果表明单轴抗压强度和弹性模量与弱夹层数量和倾角之间存在相关性。峰值强度的轴向应变通常随着弱夹层数量的增加而增加，随着倾角的变化呈现增加、减少和随后增加的模式。微裂纹主要起源于界面和加载板区域，并向软弱夹层和邻近区域延伸，形成连续裂缝，直至岩石完全破坏。夹层的数量和倾角不仅影响岩石的物理性质，而且控制着岩石的破坏模式。弱夹层的增加使峰后曲线从脆性损伤转变为延性损伤，导致不同倾角下的不同最终失效模式。通过检查岩石的宏观断裂表面，总共确定了五种不同的最终破坏模式。