中南大学学报（自然科学版）2011，Vol.42Issue(11)：3465-3471,7.
分级加卸载下深部岩石流变实验及模型
Creep properties experiment and model of deep rock with step loading and unloading
摘要
Abstract
The creep experiments were conducted by adopting multi-step incremental cycling loading and unloading method and using rock samples collected in Jinchuan No.2 mining area. According to the experimental creep curve, data of experiments were processed according to instant elastic strain, visco-elastic-plastic strain, instant plastic stain and visco-plastic stain, respectively. Deformation feature of visco-elastic-plastic rock in depth level was derived. Modified K-B model was adopted to analyse the mentioned deformation feature. The results show that the curve of modified K-B model well agrees with that of creep rock samples. The adopted modified K-B model can well describe the creep properties.关键词
分级加卸载/深部岩石/黏弹塑性/改进的西原模型Key words
multi-step incremental cycling loading and unloading/ rock in depth level/ visco-elastic-plastic/ modified K-B model分类
建筑与水利引用本文复制引用
李娜,曹平,衣永亮,张向阳..分级加卸载下深部岩石流变实验及模型[J].中南大学学报（自然科学版）,2011,42(11):3465-3471,7.基金项目
国家自然科学基金资助项目(10972238) （10972238）
