航空工业组团阎良片区土层剪切波速与深度的统计关系

Statistical Relationship between Shear Wave Velocity and Depth of Soil Layer in Yanliang Area of Aviation Industry Group

基于航空工业组团阎良片区地震小区划项目中大量的剪切波速实测资料,利用最小二乘法,采用常用的幂函数、指数函数、线性函数和一元二次多项式函数4种模型,统计回归了该地区土层剪切波速随深度的变化关系;并以拟合优度为评价标准,通过比对分析和讨论,给出了场地土及其主要岩性剪切波速与深度变化的经验回归公式。结果表明,场地土剪切波速与埋深有显著的相关性,所推荐的经验公式可供无波速资料的场地参考使用。

Based on a large number of measured data of shear wave velocity in the earthquake micro-zoning project of Yanliang area of the aviation industry group, we use the least squares method, and adopt four models, namely, power function, exponential function, linear function and quadratic polynomial function, to statistically regress the relationship between shear wave velocity and depth in this area. And to the goodness of fit criterion, the empirical regression formulas of shear wave velocity and depth variation of site soil and its main lithology are given through comparative analysis and discussion. The results show that there is a significant correlation between shear wave velocity and buried depth, and the recommended empirical formula can be used as a reference for sites without wave velocity data.