摘要
通过灰土增强体复合试样的动三轴试验,研究了动荷载作用下围压、置换率、初始干密度及初始含水量对复合试样动弹模量的影响。研究表明:经过置换后,复合试样的动弹模量得到提高,灰土增强体复合试样的动弹模量随应变水平的增长而降低,在相同的动应变水平下,随围压、置换率、初始干密度的增大而增大,随初始含水量的增大而降低;粉土复合试样的最大动弹模量也随围压、置换率、初始干密度的增大而增大,随初始含水量的增大而降低。
Based on dynamic triaxial tests, the dynamic elastic modulus of silt composite sample with lime-soil reinforcement was studied, and the influences of confining pressure, replacement ratio, initial dry density and initial moisture content were investigated. The results show that the dynamic modulus of composite sample was much higher than that of pure silt. The dynamic modulus of silt composite sample with lime-soil reinforcement decreased with increasing strain. At the same strain level, the dynamic modulus increased as the confining pressure, the replacement ratio, and the initial dry density increased, and decreased as the moisture content increased. The maximum dynamic modulus of composite sample increased as the confining pressure, the replacement ratio, and the initial dry density increased, and decreased as the moisture content increased.
出处
《太原理工大学学报》
CAS
北大核心
2009年第2期156-159,共4页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(50578104)
太原市专项基金资助项目(07010779)
关键词
灰土增强体
粉土复合试样
动三轴试验
动弹模量
lime-soil reinforcement
silt composite sample
dynamic triaxial test
dynamic elastic modulus
