铁道科学与工程学报Issue(5)：106-111,6.
洞庭湖区淤泥质黏土水泥土力学性能试验研究
Experi mental research on mechanical properties of ce ment stabilized muddy clay fro m Dong-ting Lake area
摘要
Abstract
The mechanical properties of cement stabilized muddy clay from Dong-ting Lake area for highway soft soil foundation,was researched through the unconfined compressive strength (UCS )test,to analyze the influ-ence factors of unconfined compressive strength (UCS),the relationship of stress-strain,the change law of de-formation modulus,and the failure mechanism of test samples.The results indicate that the UCS of the speci-mens increases significantly with the increase of curing period and cement ratio.However,it decreases with the increase of moisture content.The growth rate of UCS increases with the increasing value of cement ratio.Never-theless,the decrease rate of UCS results from the increasing curing days.The overall stress-stain curve of ce-ment stabilized muddy clay is made up of four stages,i.e.,the initial leading stage,plastic growth stage,stress-stain decreased stage,and residual strength stage.The deformation modulus of cement stabilized soil increases with the growth of UCS.Plastic failure of the specimens could emerges with high moisture content,low cement ratio and short curing days.However,the fracture characteristics of the specimens with low moisture content, high cement ratio and long curing days would present fragile fracture.关键词
淤泥质黏土/水泥土/无侧限抗压强度/影响因素/变形模量/破坏模式Key words
muddy clay/cement stabilized soil/UCS/influence factor/deformation modulus/fracture mode分类
交通工程引用本文复制引用
阮庆,阮波,曾元,温凯,李贤超..洞庭湖区淤泥质黏土水泥土力学性能试验研究[J].铁道科学与工程学报,2014,(5):106-111,6.基金项目
国家自然科学基金资助项目（50678175）；中南大学实验室开放专项基金资助项目 （）
