重庆大学学报Issue(8)：59-66,8.DOI:10.11835/ji.ssn1.000-582X2.0140.80.09
湖相软土动力特性影响因素敏感性分析
Sensitivity analysis of influencing factors for dynamic characteristics of lacustrine soft soil
摘要
Abstract
Three factors ,i .e .dynamic stress amplitude ,vibration frequency and confining pressure ,are considered for the orthogonal test design of 3 factors and 3 levels .And according to the orthogonal design , dynamic triaxial tests are carried out to study the axial accumulated strain ,dynamic pore water pressure and dynamic elastic modulus of lacustrine soft soil under cyclic loads .Then the sensitivity analysis method is employed to research the sensitivity of each dynamic characteristic index influenced by various loading factors .Results show that the dynamic stress amplitude is the most significant impact factor to the axial accumulated strain ,dynamic pore water pressure and dynamic elastic modulus .Confining pressure is the secondary factor affecting the axial accumulated strain and dynamic elastic modulus ,and vibration frequency is the secondary factor influencing the dynamic pore water pressure .关键词
循环荷载/湖相软土/动力特性/敏感性分析/动三轴试验/正交试验Key words
cyclic loads/lacustrine soft soil/dynamic characteristics/sensitivity analysis/dynamic triaxial test/orthogonal test分类
建筑与水利引用本文复制引用
唐葭,邓宗伟,高乾丰,蒋建清..湖相软土动力特性影响因素敏感性分析[J].重庆大学学报,2014,(8):59-66,8.基金项目
国家自然科学基金资助项目（51308198）；湖南省科技计划项目（2013GK3086）；湖南省教育厅科学研究项目（12C0580）；湖南省教育厅青年项目 （）
