地表浅部地震勘探方法在城市隐伏活动断裂调查中的应用  

Application of shallow seismic exploration method in investigation of urban concealed active faults

作　　者：徐吉祥 张晓亮 李潇 王继明 薛爱民 舒律 XU Jixiang;ZHANG Xiaoliang;LI Xiao;WANG Jiming;XUE Aimin;SHU Lü(Beijing Institute of Geology,Beijing 100195,China;Beijing Institute of Geology Survey,Beijing 100195,China;Information Center of Beijing Institute of Geology,Beijing 100195,China;Beijing Petrosound Geoservices Co.,Ltd,Beijing 100085,China)

机构地区：[1]北京市地质矿产勘查院,北京100195 [2]北京市地质调查研究所,北京100195 [3]北京市地质矿产勘查院信息中心,北京100195 [4]北京派特森科技股份有限公司,北京100085

出　　处：《城市地质》2022年第1期79-84,共6页Urban Geology

基　　金：中国地质调查局项目(编号:12120113012000)资助。

摘　　要：混合源面波与三分量频率谐振勘探方法是近年来兴起的一套新型城市地球物理探测技术。以黄庄-高丽营断裂为例,采用主动源多道瞬态面波、混合源多道瞬态面波勘探和三分量地震频率谐振勘探方法进行实验研究。研究结果表明,主动源面波勘探可清晰展示地表以下15 m的地质构造;混合源多道瞬态面波,综合主动源信号和被动源(噪声)优势,增加其探测深度;三分量地震频谱谐振H/V谱比结果可清晰反映地质构造,并与主动源面波勘探方法探测的10~15 m深度的低速异常带特征相似;三种方法相互结合应用,既提供了多种数据源,也提高了数据解译的精度与可信度。In recent years,mixed source multi-channel surface wave and three component seismic frequency resonance exploration method has emerged as a new set of urban geophysical exploration technology.In this paper,the active source multi-channel surface wave,the mixed multi-channel surface wave exploration and the three component seismic frequency resonance exploration methods are used to carry out an experimental research in known geological structure areas of Huangzhuang-Gaoliying fault in the plain area of Beijing.The results show that active source multi-channel surface wave exploration can clearly describes the-15 m geological structure in the subsurface;the mixed source multi-channel transient surface wave combined with the active source signal and passive source(noise)effectively increases the detection depth;the results of resonance H/V ratio of three component seismic spectrum clearly depict the geological structure.The three methods are compared with each other to enhance the accuracy of understanding and translation and the credibility of the results.The results of the research and experiment have important guiding significance for urban geological exploration in the future.

关 键 词：地震勘探 主动源面波 混合源面波 三分量地震频率谐振 隐伏活动断裂 

分 类 号：P631.4[天文地球—地质矿产勘探]