摘要
建立了土体在堆积过程中的一维大变形固结模型 ,基于李群变换原理 ,通过固结方程的对称性构造出相似变量之后 ,由摄动法求得了近似解析解答 ,并通过试验数据与传统的线性化固结理论的解答相比较 ,显示了传统线性化固结理论在该问题上的局限性。
A nonlinear model to simulate the large strain consolidation process with soil accumulation on top boundary is established.Owing to the symmetry of the model,a similar variable is constructed,and based on this similar variable,an approximate analytical solution of the model is obtained by using perturbation method.After applying same experiment data,the comparison between the solutions obtained here and those appearing in the classical linear theory is presented,and the shortcoming in classical linear theory is shown.
出处
《水力发电学报》
EI
CSCD
北大核心
2003年第4期39-44,共6页
Journal of Hydroelectric Engineering
基金
国家自然科学基金资助项目 ( 5 0 0 490 0 5 )
关键词
一维固结
大变形
Lie群变换
摄动法
沉积
one-dimensional consolidation
large strain
Lie Group transformation
perturbation method
sedimentation
