台阵类型对微动勘探的影响——从视S波速度剖面角度分析  

The Influence of Array Types on Microtremor Exploration:Analysis from the Perspective of Apparent S-Velocity Profile

作　　者：李传金 渐翔 王强 丁浩东 郑涛 LI Chuanjin;JIAN Xiang;WANG Qiang;DING Haodong;ZHENG Tao(School of Civil Engineering,Fujian University of Technology,69 South-Xuefu Road,Fuzhou 350118,China;Institute of Geotechnical Engineering,Fujian University of Technology,69 South-Xuefu Road,Fuzhou 350118,China;Key Laboratory of Underground Engineering,Fujian Province University,Fujian University of Technology,69 South-Xuefu Road,Fuzhou 350118,China;City Land and Resources Law Enforcement Supervision Detachment,Huainan Municipal Bureau of Natural Resources and Planning,229 East-Chaoyang Road,Huainan 232001,China)

机构地区：[1]福建理工大学土木工程学院,福州市350118 [2]福建理工大学岩土工程研究所,福州市350118 [3]福建理工大学地下工程福建省高校重点实验室,福州市350118 [4]淮南市自然资源和规划局国土资源执法监察支队,安徽省淮南市232001

出　　处：《大地测量与地球动力学》2025年第4期431-435,共5页Journal of Geodesy and Geodynamics

基　　金：中国科学院重点部署项目(ZDRW-ZS-2021-3-1);福建省自然科学基金(2023J01939)。

摘　　要：分别使用双重圆形、十字形和直线形等类型台阵观测同一条测线的10个测点,提取频散曲线,绘制视S波速度剖面图。结果表明:1)十字形台阵与双重圆形台阵的视S波速度剖面图基本一致,划分的地层分界面也基本一致,但2种台阵圈定的速度异常体位置有所不同;2)直线形台阵的视S波速度剖面图与双重圆形台阵的视S波速度剖面图有明显差异,且不同走向的直线形台阵获得的视S波速度剖面图有很大差异,划分的土石分界面也有明显差异。开展微动勘探时,应优先使用双重圆形台阵,视场地情况使用十字形台阵,谨慎使用直线形台阵。At 10 measurement points along the same survey line,observations were conducted using various array types such as double circular array,cross shaped array,and linear array.Then,we extracted dispersion curves,plotted apparent S-wave velocity profiles.The study obtained the following two results.Firstly,the apparent S-wave velocity profiles obtained from cross shaped array are basically consistent with those obtained from double circular array,and the delineated interfaces of geological layers are also generally consistent,but there are differences in the positions of velocity anomaly bodies delineated by the two types of arrays.Secondly,there are significant differences between the apparent S-wave velocity profiles of the linear array and the double circular array,and there are significant differences in the apparent S-wave velocity profiles obtained from the linear array with different orientations,as well as in the division of the soil rock interface.When conducting microtremor exploration,double circular array should be prioritized,cross shaped array should be used depending on the situation,and linear array should be used with caution.

关 键 词：微动勘探 台阵 视S波速度剖面 

分 类 号：P315[天文地球—地震学] P631[天文地球—固体地球物理学]