水道港口2025，Vol.46Issue(2)：250-258,9.
连云港深厚覆盖土层土动力参数与剪切波速的研究分析
Statistical analysis of soil dynamic parameters and shear wave velocity in regions with deep coverage layers in Lianyungang
摘要
Abstract
Dynamic shear modulus ratios and damping ratios for 480 groups of five common soil types from the deep soil layer in Lianyungang,as well as shear wave velocity data from 151 deep boreholes,were collected and organized.The research analyzed the uncertainty of dynamic shear modulus ratios and damping ratios,and the relationship between shear wave velocity and burial depth.Results indicated that most dynamic soil parameters had significance test P-values less than 0.05,suggesting a predominantly skewed distribution.The study examined the distribution characteristics of dynamic shear modulus ratios and damping ratios with shear strain for the five soil types and provided recommended values for different burial depth ranges.Additionally,three different fitting models were used to analyze the relationship between soil types and burial depth,revealing significant effects of site category and soil properties on the statistical formulas for shear wave velocity variations with depth.Overall,the quadratic function model showed the highest goodness of fit,resulting in a statistical empirical formula for shear wave velocity considering site category and soil properties,which can serve as a reference for other engineering projects in the region.关键词
动剪切模量比/阻尼比/不确定性分析/剪切波速/土层埋深/岩土性状Key words
dynamic shear modulus ratio/damping ratio/uncertainty analysis/shear wave velocity/burial depth/geotechnical properties分类
交通工程引用本文复制引用
李孟良,谭慧明,徐烨,胡昕..连云港深厚覆盖土层土动力参数与剪切波速的研究分析[J].水道港口,2025,46(2):250-258,9.基金项目
国家自然科学基金项目(52078187) （52078187）
西北电力设计院有限公司技术创新项目(KC-2022-001) （KC-2022-001）
