两种循环荷载共同作用下地基一维固结  

STUDY ON THE ONE-DIMENSIONAL CONSOLIDATION BEHAVIOR OF SOFT SOIL UNDER TWO DIFFERENT CYCLIC LOADING

作　　者：夏森炜[1] 蒋军[1] 朱国元[1] 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310027

出　　处：《低温建筑技术》2005年第1期47-49,共3页Low Temperature Architecture Technology

摘　　要：一维固结理论是本文的一个特例。根据不同土层深度以及地下水位的变化对孔压变化的影响进行固结性状分析,得到有关的固结曲线,结果表明:两种循环荷载作用下,固结开始时固结速度反而慢,但是随着固结的深入,其固结速率加快,孔压值达到一定值后,与单种循环荷载作用趋于一致;两种循环荷载下孔压值随时间先增大后减小,与实验结果先一致;孔压呈振荡变化并且最终趋向于某一定值后基本保持不变。Based on the single-layer model,the analytical solution is obtained by applying one-dimensional consolidation equation under two cyclic loading.Changeable regularity of pore pressure is also analyzed because of the variety of soil layers depth and ground water plane.The consolidation curve is obtained.Results indicate that the variable regularity of pore pressure is of two cyclic loading,and the consolidation can be accelerated.The effect of two cyclic loaing is the same as that of single cyclic loading as pore pressure reaches a certain value.Under two cyclic loading,pore pressure increases at first,and then decreases,which is the same as the test result.Pore pressure surges,and tend to be constant in the end.

关 键 词：两种循环荷载 一维固结 解析解 

分 类 号：TU753.8[建筑科学—建筑技术科学]