基于软土固结蠕变试验非线性蠕变函数及参数分析  

Analysis on Function and Parameters of Non-linear Creep through Creep Test on Soft Soil Consolidation

作　　者：顾中华[1] 高广运[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《地下空间》2004年第1期11-13,26,共4页Underground Space

基　　金：上海市重点学科(岩土工程)资助

摘　　要：基于室内一维固结蠕变试验建立了反映软土非线性流变特性的蠕变函数 ,分析了参考时间的特性 ,并提出确定参考时间的数学方法。通过确定的参考时间线性拟合出另外两个蠕变参数 ,并对参数进行分析。大量的试验证明 ,实测结果与本文提出蠕变函数的理论预测值较为符合 。Based on indoor 1-D consolidation creep te st, a creep function reflec ting nonlinear creep character of soft soil has been set up, the character of re ference time is analyzed and the mathematical method for estimating the referenc e time is presented. Through estimated reference time, another two creep paramet ers were linearly fitted and analyzed. A large number of tests show that the res ults measured are consistent with those estimated theoretically by creep functio n, which demonstrates the rationality of the creep function.

关 键 词：软土 固结 蠕变试验 线性拟合 线性相关系数 

分 类 号：TU447[建筑科学—岩土工程]