摘要
动弹性模量是土重要的动力特性表征参数。针对湖南省湘西地区广泛存在的典型粘土,进行了不同压实度、含水率、固结比条件下的一系列动三轴试验,试验结果表明Hardin模型可以较好地描述该粘土饱和状态下的动弹模-动应变关系,同时探讨了围压、静偏应力等参数对土体的动弹性模量发展的影响,并揭示了残余孔压变化与动弹性模量衰减的内在联系。
Dynamic elastic modulus is an important dynamic characteristic parameter of soil. Aiming at typical clay widely existing in the Xiang-Xi district,Hunan Province,this paper carried out a series of dynamic triaxial tests with different degrees of compaction,water contents and consolidation ratios.The results showed that Hardin model could reflect the relationship between dynamic elasticmodules and dynamic strain. Additionally,this paper discussed influence factor of dynamic elastic modulus,such as confining pressure and static deviatorstress. The internal correlation between residual pore water pressure and dynamic modulus of elasticity attenuation is also revealed.
出处
《公路工程》
北大核心
2016年第2期182-185,共4页
Highway Engineering
关键词
动弹性模量
粘土
动三轴试验
Hardin模型
残余孔压
dynamic elastic modules
clay
dynamic triaxial test
Hardin model
residual pore water pressure
