水利水电科技进展2018，Vol.38Issue(3)：66-69,4.DOI:10.3880/j.issn.1006-7647.2018.03.012
一种修正的软土次固结计算公式
A modified formula of soft soil secondary consolidation
摘要
Abstract
The relationship between the secondary consolidation coefficient and pressure for soft soil is studied by indoor compression test. It is found that the secondary consolidation coefficient-pressure curve of over-consolidated soil and normal consolidated soil can be fitted by a power function and a hyperbola function, respectively. Based on the experiment, the conventional secondary consolidation formula was corrected and a modified one was proposed considering the effect of pressure and the convergence characteristic of calculation. The results of its application to an engineering project show that the new formula can better reflect the secondary consolidation characteristic of soft soil,indicating great engineering value.关键词
软土/次固结系数/固结压力/工后沉降/压缩试验Key words
soft soil/secondary consolidation coefficient/consolidation pressure/post-construction settlement/compression test分类
建筑与水利引用本文复制引用
徐楠,吴跃东..一种修正的软土次固结计算公式[J].水利水电科技进展,2018,38(3):66-69,4.基金项目
国家自然科学基金(51279049) （51279049）
中央高校基本科研业务费专项(2015B06014) （2015B06014）
