摘要
以非饱和土增量非线性固结理论为基础,考虑干密度在固结过程中的变化,对延安新区高填方工程进行了土体变形和土体内水分迁移的耦合分析,预测了填筑体的工后沉降、降雨入渗等对填筑体沉降与水分分布的影响。分析表明:与传统的双线法比较,非饱和土增量非线性固结理论不仅能较好地模拟施工、降雨等过程,而且能同时考虑土体变形和土体内水分迁移,尤其是能较好地考虑两者间的耦合效应,计算结果更为合理。
Based on the incremental nonlinear consolidation theory for unsaturated soil and the relative dry density as the internal variable,the bidirectional coupling analysis of soil deformation and water transfer of a high fill project in Yan’an New District of northern Shaanxi is carried out.The influences of the post-construction settlement of the fill and rainfall infiltration on its settlement and water distribution are predicted.The results show that compared with the traditional double-line method,the incremental nonlinear consolidation theory for unsaturated soil can simulate the process of construction and rainfall and the deformation of soil and the movement of water in soil at the same time.Especially it can make the calculated results be more reasonable by considering the bidirectional coupling effect between the soil deformation and water transfer.
作者
郭剑峰
陈正汉
郭楠
GUO Jian-feng;CHEN Zheng-han;GUO Nan(Army Logistics University,Chongqing 401311,China;Chongqing Institute of of Engineering,Chongqing 400056,China;School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2021年第S01期143-148,共6页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金项目(11672330)
关键词
非饱和土
固结理论
增量非线性
重塑黄土
高填方
unsaturated soil
consolidation theory
incremental nonlinearity
remolded loess
high fill
