基于分位数回归的剪切波速变化规律

本文收集了邯郸市区40个场地实测的剪切波速值,经过统计整理,采用分位数回归法对粉土、粉质粘土剪切波速随深度的变化规律进行分析,建立了分位数回归模型,并计算了回归参数,得出分位数回归曲线方程。结果表明,粉土的剪切波速值受埋深的影响为单向性;而埋深对粉质粘土剪切波速值的影响呈先增大后减小趋势。

A quantile regression analysis on variation of shear wave velocity

The forty original data of shear wave velocity in Handan area that had been collected were analyzed by using the quantile regression,the quantile regression models of two kinds of soil had been obtained by analyzing the changing law of shear wave velocity with depth increasing. The regression parameters and regression curve equation were obtained. The results show that the effect of depth to silt's shear wave velocity is unipolarity,and the effect of depth to silt's shear wave velocity show a trend of first increase and then decrease.