摘要
采用考虑起始水力梯度的非Darcy渗流方程,将Terzagh i饱和黏土一维固结理论推广至可以考虑地面荷载随时间变化的情况,并给出了有限体积法数值计算格式.在此基础上,讨论了起始水力梯度和施工速度对饱和黏土层固结特性的影响.计算结果表明,起始水力梯度越大,地基的固结速度就越慢,且最终固结度小于1;而施工速度的影响主要体现在施工期和竣工初期.
Terzaghi's one-dimensional consolidation theory was generalized to take account of the case under time-dependent loadings based on the modified non-Darcy seepage equation considering the initial hydraulic gradient,and numerical analysis was performed by using the finite volume method.Then the effects of the initial hydraulic gradient and the rate of loading on the one-dimensional consolidation behaviors of saturated clay layers were investigated.The analytical results show that,the rate of consolidation of ...
出处
《郑州大学学报（工学版）》
CAS
北大核心
2009年第3期35-38,共4页
Journal of Zhengzhou University（Engineering Science）
基金
河南高速公路发展有限责任公司科技项目(2007GF009)
东莞市科技计划资助项目(2006-117)
关键词
固结理论
有限体积法
非DARCY渗流
起始水力梯度
变荷载
consolidation theory
finite volume method
non-Darcy flow
initial hydraulic gradient
time-dependent loading
