摘要
通过对某工程４种粗粒土的动模量、阻尼比试验，就特性曲线的全归一化处理、Ｈａｒｄｉｎ经验公式的适用性等问题进行了探讨。结果表明，特性曲线的全归一化处理能较好地消除由于粗粒土动力试验一般团结应力范围值较大而对试验成果带来的影响；Ｈａｒｄｉｎ经验公式能够适用于粗粒土，但由于土体中占主要成份的骨架材料不同，使粗粒土阻尼比公式中的ｍ取值增大了０．６９～２．６倍。
According to the tests of dynamic modulus and damping ratio of 4 kinds of coarse soil of a project, the papar discusses the issues of treatment of whole normalization of characteristic curve and applicability of Hardin empirical formula. The results shown that the treatment of whole normalization of characteristic curve can eliminate the effects the test results usually due to higher range value of consolidstion stress in coarse soil dynamic test and. Hardin empirical formula can suit coarse soil, but the m value in damping ratio formula of coarse soil is 0. 69-2. 6 times bigger due to the framework material, which in the main part of earth mass, is different.
出处
《人民黄河》
CAS
北大核心
1994年第3期34-36,共3页
Yellow River
关键词
粗粒土
动力试验
固结
动模量
成果整理
阻尼比
coarse soil,large-sized viberation triaxial test,dynamic modulus,damping ratio
