山西临汾市区土层剪切波速与埋深关系的研究  

Study on the Relationship between Shear Wave Velocity and Burial Depth of Soil Layers in Linfen City, Shanxi

作　　者：任瑞国 李宏伟[1,2] 扈桂让[1,2] REN Ruiguo;LI Hongwei;HU Guirang(Shanxi Earthquake Agency,Taiyuan,Shanxi 030002,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局,山西太原030002 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2023年第3期52-56,共5页Earthquake Research in Shanxi

摘　　要：土层剪切波速是地震小区划和工程场地地震安全性评价中的重要参数。选取临汾市汾河冲积平原一二级阶地和三级阶地共60个典型工程的土层剪切波速资料,分别采用三种经验模型进行统计回归分析,随机选取4个实测钻孔检验拟合程度。结果表明,该地区剪切波速与埋深存在明显的相关关系,将实测结果与拟合结果进行检验,经验关系式与实测的剪切波速值基本吻合,表明可用于该地区剪切波速的推测。Shear wave velocity of soil layers is an important parameter in seismic zone delineation and seismic safety assessment of engineering sites.This study selected shear wave velocity data from 60 typical engineering sites in the first and second terraces as well as the third terrace of the Fen River alluvial plain in Linfen City.Three empirical models were used for statistical regression analysis,and the fitting accuracy was verified with data from four randomly selected boreholes.The results indicated a significant correlation between shear wave velocity and burial depth in the area.The comparison between measured and fitted results demonstrated a good agreement,suggesting the applicability of the empirical relationships for shear wave velocity estimation in the region.

关 键 词：剪切波速 埋深 统计分析 

分 类 号：P315.3[天文地球—地震学]