摘要
在实验的基础上，对岩盐的变形特性进行了研究。结果表明，岩盐是一种软岩，在单轴压缩状态下具有很强的横向变形能力，泊松比大于０－５ ，且变形破坏过程具有明显的分阶段特征；随着围压增大，弹性模量和应力峰值应变增大，最终扩容量减少；在三轴应力状态下具有更好的线性关系。
The deformation characteristics of rocksalt are studied in this paper. The results indicate that rocksalt is a typical soft rock. It has very strong landscape orientation deformation capacity under single compressing condition. It′s Poisson ratio is over 0 5. The process of rocksalt′s deformation and damage has obvious grading characteristics. The results also indicate that rocksalt′s elastic module and the strain corresponding to stress peak value increase with around pressure. But the final expending volume decreases with decreasing around pressure. It is found that the σ ε curve has more obvious linear relation under 3 D stress than it has been under single stress.
出处
《矿冶工程》
CAS
CSCD
北大核心
1999年第4期12-15, ,共4页
Mining and Metallurgical Engineering
基金
教育部春晖计划资助项目
