多道瞬态面波在LNG罐区地基勘察中的应用  

Application of Multi-channel Transient Surface Wave in Settlement Investigation of LNG Tank Farm

作　　者：周荣亮 刘彦华 徐睿知 Zhou Rongliang;Liu Yanhua;Xu Ruizhi(Jiangsu Institute of Hydrogeology and Engineering Geology, Huai’an Jiangsu 223001, China)

机构地区：[1]江苏省水文地质工程地质勘察院,江苏淮安223001

出　　处：《工程地球物理学报》2022年第2期162-167,共6页Chinese Journal of Engineering Geophysics

基　　金：国家自然科学基金的项目(编号:41274123)。

摘　　要：由于近几年工程勘察需要,多道瞬态面波勘探技术快速发展,在工程勘察中多道瞬态面波以工程周期短、施工条件简单、效果良好的一种勘察手段。本文结合工程实例,介绍了利用多道瞬态面波方法对一些特殊地区勘察,通过对面波相速度分析,进而对覆盖层、强风化层、中风化层及软弱夹层厚度进行划分,并分析罐区地基问题原因。现场再进行钻探验证,进一步确定多道瞬态面波在工程勘察的应用优势。Due to the needs of engineering survey in recent years,multi-channel transient surface wave exploration technology has been developed rapidly.In engineering survey,multi-channel transient surface wave is a survey method features with short project period,simple construction conditions and good effect.Combined with engineering examples,this paper investigates some special areas by multi-channel transient surface wave method.Through the analysis of surface wave phase velocity,this paper distinguishes the thickness of overburden,strongly weathered layer,moderately weathered layer and weak interlayer and expounds the causes of foundation problems in tank farm.Drilling verification is conducted on site to further determine the application advantages of multi-channel transient surface wave in engineering.

关 键 词：工程勘察 多道瞬态面波 基岩埋深 地基沉降 软弱夹层 

分 类 号：P631.4[天文地球—地质矿产勘探]