双轴压缩条件下绿片岩的蠕变规律研究  

STUDY ON CREEP RULES OF GREEN SCHIST UNDER BIAXIAL COMPRESSION

作　　者：张文生 熊良宵[2] ZHANG Wen-sheng;XIONG Liang-xiao(Limited Company of Nuclear Industry Southwest Institute of Survey and Design,Chengdu 610061,China;College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu,Sichuan 610059,China)

机构地区：[1]核工业西南勘察设计研究院有限公司,成都610061 [2]成都理工大学环境与土木工程学院,成都610059

出　　处：《地质灾害与环境保护》2020年第1期75-80,共6页Journal of Geological Hazards and Environment Preservation

摘　　要：在锦屏二级水电站辅助洞绿片岩的双轴压缩蠕变试验结果的基础上,研究了应力路径对双轴压缩蠕变变形的影响。结果表明:当侧向应力相同时,随着轴向应力的增加,轴向稳态蠕变阶段的变形速率逐渐增加;当轴向应力相同时,随着侧向应力的增加,轴向稳态蠕变阶段的变形速率逐渐减小。The biaxial compression creep tests on greenschist specimens from auxiliary tunnel of Jinping Second Stage Hydropower Station were carried out.The effect of stress path on creep deformation was studied.The results show that the axial strain rate of stationary creep stage will increase with increasing axial stress when the lateral stress is fixed,but it will reduce with increasing lateral stress when the axial stress is fixed.

关 键 词：双轴压缩蠕变试验 应力路径 经验方程 

分 类 号：TU452[建筑科学—岩土工程]