华东交通大学学报2026，Vol.43Issue(1)：1-11,11.
加锚层状岩石三轴压缩力学性能研究
Study on Triaxial Compression Mechanical Properties of Anchored Layered Rock
摘要
Abstract
Bedded rock is a common sedimentary rock type in underground engineering environment,and an-chor support technology is generally used to strengthen bedded rock.In order to study its mechanical response under complex engineering stress environment,Yunnan red sandstone,marble glue,screw and epoxy resin were selected as raw materials and the test samples were made by cutting and bonding.Triaxial compression test was used to investigate the effects of different interface dip angles and confining pressures on the mechanical proper-ties of anchored and unanchored stratified rocks.The results showed that the failure of the sample experienced pore compaction,linear elasticity,stable crack growth,unstable crack growth and post-peak failure,and its strength,deformation parameters and crack growth pattern were significantly affected by confining pressure.The increase of confining pressure can prolong the elastic deformation stage and improve the residual strength and ductility.The failure modes of specimens with different angles under confining pressure are split failure,tensile shear failure and pure shear failure.Confining pressure has a comprehensive enhancement effect on the mechani-cal properties of anchored and stratified rocks,which not only enhances the compressive strength and shear resis-tance of rocks,but also improves the post-peak ductility of rocks.This study provides strong support for further understanding of rock mechanical properties and engineering applications.关键词
加锚层状岩石/三轴压缩/界面层倾角/围岩压力/峰值强度Key words
anchored layered rock/triaxial compression/interface layer dip angle/surrounding rock pressure/peak strength分类
建筑与水利引用本文复制引用
万徐梓涵,刘永胜,吴勋杰,张志星,何忠懿,杨政,李青强..加锚层状岩石三轴压缩力学性能研究[J].华东交通大学学报,2026,43(1):1-11,11.基金项目
国家自然科学基金项目(51664014) （51664014）
