中文摘要：

以绿片岩和大理岩组成的层状岩体为研究对象，采用FLAC^3D对互层状岩体进行了双轴压缩变形试验的数值分析，在数值分析中考虑荷载方向与层理之间的几何关系、大理岩夹层的体积含量和侧压比的影响．研究结果表明，双轴压缩条件下，轴向荷载方向平行于层理、侧向荷载方向垂直于层理时的破坏强度最大，轴向荷栽方向垂直于层理、侧向荷载方向平行于层理时的破坏强度次之，轴向和侧向荷载方向均平与层理时的的破坏强度最小；当轴向荷载方向斜交于层理、侧向荷载方向平行于层理时，随着夹层倾角由0°增加至90°时，层状岩体的破坏强度呈先增大后减小的规律；随着侧压比由0增加到1．0时，层状岩体的双轴压缩破坏强度呈先增大后减小的规律．

英文摘要：

This paper studies the interlayered rock mass composed of greenschist and marble, the numerical a- nalysis of biaxial compression tests for interlayered rock mass was done by using FLAC^3D. Lots of influencing factors such as geometric relationship, volumetric content of marble interlayer and the ratio between lateral stress and axial stress were taken into account in the numerical analysis. The research results show that the bi- axial compression strength when axial loading orientation is parallel to bedding plane and lateral loading orien- tation is perpendicular to bedding plane is largest, and when both axial and lateral loading orientations are par- allel to bedding plane is smallest. The biaxial compression strength will increase firstly and then decrease later when the dip angle of interlayer increases from 0° to 90° if both axial and lateral loading orientations are paral- lel to bedding plane. The biaxial compression strength will increase firstly and then decrease later when the ratio between lateral stress and axial stress increases from 0 to 1.0.