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静载下饱和冻结中砂的弹性模量与温度及应变率的关系
RELATIONSHIP AMONG ELASTIC MODULUS,TEMPERATURE AND STRAIN RATE OF FROZEN MEDIUM UNDER STATIC LOADING
【摘要】 通过在不同温度及不同应变率下对饱和冻结中砂进行单轴压缩试验,获得了静载下饱和冻结中砂的弹性模量。本文分析了温度及应变率对冻结中砂弹性模量的影响规律,并给出用温度和应变率估算弹性模量的经验公式。
【Abstract】 Uniaxial compression tests are performed on saturated frozen sand at various temperatures and strain rates. The elastic modulus is obtained from these tests. The relationship among elastic modulus,temperature and strain rate is discussed,and the formula is presented to predict the elastic modulus based on temperature and strain rate.
【关键词】 土力学;
饱和冻结中砂;
弹性模量;
温度;
应变率;
【Key words】 soil mechanics; saturated frozen sand; elastic modulus; temperature; strain rate;
【Key words】 soil mechanics; saturated frozen sand; elastic modulus; temperature; strain rate;
【基金】 国家自然科学基金(40171021);中国科学院兰州寒区旱区环境与工程研究所知识创新工程(CACX210053)资助项目。
- 【文献出处】 岩石力学与工程学报 ,Chinese Journal of Rock Mechanics and Engineering , 编辑部邮箱 ,2003年S2期
- 【分类号】TU445
- 【被引频次】15
- 【下载频次】358