摘要
通过砂卵石土室内动三轴试验,对饱和砂卵石土的动本构关系动力特性进行了较为深入的研究,主要分析了围压、固结比和动荷载振动频率对砂卵石土的动本构关系影响的变化规律。试验结果表明,饱和砂卵石土的动本构关系可用双曲线表示,围压、固结比参数对其影响较大,随着围压或固结比的增大,动本构关系曲线逐渐偏向应力轴,而动荷载振动频率对砂卵石土的动弹模量影响很小。
Through laboratory tests on sandy pebble soil by using the dynamic triaxial test, studies of saturated sandy pebble soil has been done. The thesis analyzed the rule about the stress-strain relation of sandy pebble soil under different confining pressure, solidify ratio and vibration frequency. The result shows that the stress-strain relation of sandy pebble soil can been symbolized by hyperbola. In addition, the research also makes clear that confining pressure or confining pressure ratio work markedly on the stress-strain relation, but the vibration frequency affecte little.
出处
《四川建筑科学研究》
北大核心
2008年第5期155-157,共3页
Sichuan Building Science
基金
四川省教育厅重点科研项目(2003A111)
关键词
砂卵石土
动三轴试验
动本构关系
sandy pebble soil
dynamic triaxial test
stress-strain relation
