综合地球物理方法探测地裂缝发育及展布  

The Detection of the Development and Distribution of the Ground Fissure by the Integrated Geophysical Methods

作　　者：曹朋军 王天意 侯征 林星[1] 王佳奇[1] Cao Pengjun;Wang Tianyi;Hou Zheng;Lin Xing;Wang Jiaqi(Center of Geophysical Exploration, Tianjin North China Geological Exploration Bureau, Tianjin 300170, China;College of Exploration Technology and Engineering, Hebei Geo University, Shijiazhuang Hebei 050031, China)

机构地区：[1]天津华北地质勘查局天津市地球物理勘探中心,天津300170 [2]河北地质大学勘查技术与工程学院,河北石家庄050031

出　　处：《工程地球物理学报》2020年第2期251-257,共7页Chinese Journal of Engineering Geophysics

基　　金：天津市地球物理勘探中心科研项目(编号:WT-科[2019]-03);国家自然科学基金项目(编号:41374133);河北省自然科学基金项目(编号:D2018403090)。

摘　　要：基于探地雷达法与高密度电阻率法对地裂缝展布及发育特征进行探测的有效性进行了研究,以华北平原中西部某地裂缝发育区为研究对象,结合场地实测资料构造了研究区内典型地裂缝的地质-地球物理特征正演模型,分析了研究区内地裂缝的探地雷达及电阻率的理论响应特征,总结出了不同发育程度及空间展布的地裂缝在探地雷达及高密度电阻率法成果中的组合判识模式,即结合高密度电阻率法与地质雷达探测成果对地裂缝的平面展布进行定位,在此基础上利用高密度电阻率反演成果对地裂缝的发育程度及延深进行识别。理论及实验结果表明,利用上述两种方法组合探测地裂缝的展布及延展特征是高效、可行的,发挥了各自的优势,压制了单一地球物理方法的多解性。We detected the development and distribution of the ground fissure by the GPR and HDMR.Taking the fracture-development area in the middle and west part of northern China as a case study,we constructed the typical geological-geophysics models based on the collected data of geology.In addition,we analyzed the characteristics of the theoretic response to typical ground fissures and electrical resistivity.The papaer also summerized a integrated identifying mode of the ground fissure with GPR and HDMR,which is to locate the distribution of the ground fissure with GPR and HDMR and identify the development and extension of the ground fissures by the inversion result of the HDMR.Results showed that the integrated geophysical methods can detect the development and distribution characteristics of ground fissures efficiently and feasibly,and overcome the non-uniqueness of a single geophysical method.

关 键 词：地裂缝 展布特征 综合地球物理方法 

分 类 号：P631.3[天文地球—地质矿产勘探]