水力发电学报2025，Vol.44Issue(3)：119-127,9.DOI:10.11660/slfdxb.20250311
温度对沥青混凝土力学性能影响的三轴试验研究
Triaxial test study on influence of temperature on mechanical properties of asphalt concrete
高磊 1张延亿 2李泽发 1邓刚 2李远林 1张茵琪2
作者信息
- 1. 新疆水利水电勘测设计研究院有限责任公司,乌鲁木齐 830000
- 2. 中国水利水电科学研究院,北京 100038
- 折叠
摘要
Abstract
In this study,the influence of temperature variations on mechanical properties of asphalt concrete is explored through triaxial tests on the asphalt concrete under four conditions of test temperatures.The results show a significant influence of temperature on the mechanical properties.Under the same confining pressure and the same loading rate,deviator stress decreases with the rising temperature;Under the condition of low confining pressure and low temperature,or high confining pressure and medium temperature,variations in test temperature produce a significant effect on the maximum deviator stress.Under the same loading rate and same temperature,deviator stress increases with confining pressure,and its maximum value increases linearly with the increase in confining pressure.Duncan-Chang model gives effective simulations of the stress-strain variation until deviator stress reaches its peak,but is no longer valid after the peak.And the model's parameters k,n,c and φ are very sensitive to test temperature.关键词
温度/沥青混凝土/三轴试验/围压/邓肯张模型Key words
temperature/asphalt concrete/triaxial test/confining pressure/Duncan-Chang model分类
水利科学引用本文复制引用
高磊,张延亿,李泽发,邓刚,李远林,张茵琪..温度对沥青混凝土力学性能影响的三轴试验研究[J].水力发电学报,2025,44(3):119-127,9.
