华东交通大学学报2011，Vol.28Issue(6)：96-100,5.
利用3次样条插值确定室内压缩试验先期固结压力
Determining Pre-consolidation Pressure of Clays with Cubic Spline Interpolation in Three Consolidation Tests
摘要
Abstract
Pre-consolidation pressure is an index of deciding the stress history of a soil layer, and is also an important parameter in differentiating the consolidation state of soft soil. Based on Casagrande method, the thought of adopting cubic spline functions to fit e-lgp curve is put forward. Besides, a calculating program of the mathematic model is written, which aims to accurately and quickly obtain pre-consolidation pressure of clays. Finally, two cases are presented. By comparisons and analyses, the fitting degree of this new model is better than that of the cubic and quartic polynomial models and Harris model, which has good engineering applying value.关键词
先期固结压力/e-lgp曲线/3次样条插值Key words
pre-consolidation pressure/ e-lgp curve/ cubic spline interpolation分类
建筑与水利引用本文复制引用
姬付全,经绯,刘志彬,居俊..利用3次样条插值确定室内压缩试验先期固结压力[J].华东交通大学学报,2011,28(6):96-100,5.基金项目
江苏省交通厅资助项目(09Y33) （09Y33）
