EH-4电导率成像系统在大型水库区域水位调查及溶岩探测中的应用研究  

Study on Application of EH-4 Electric Conductivity Imaging System in Regional Water Table Survey and Lava Detection of Large-sized Reservoir

作　　者：洪婷[1] 

机构地区：[1]陕西省水利电力勘测设计研究院,陕西省咸阳市712000

出　　处：《西北水电》2014年第3期16-18,39,共4页Northwest Hydropower

摘　　要：介绍了EH-4电导率成像系统在区域水位调查及溶岩探测中的应用效果,通过在布设的千米剖面上进行数据采集,现场FFT变换获得电场和磁场虚实分量和相位数据,进行一维BOSTIC反演,经EH-4快速自动二维电磁成像,最终采用SURFER软件绘出视电阻率等值线断面图,分析解释得出结论。根据结果分析,认为该系统在地下水及溶洞探测中具有较好的应用效果,并指出EH-4电导率成像系统在应用中存在的问题及相关干扰因素。The application effect of the EH-4 electric conductivity imaging system in regional water table survey and lava detection of large-sized reservoir is described. Through the data collection from kin-level section provided, data of imaginary-real component and phase of electric field and magnetic field are available through FFT conversion at field, then, the one-dimension BOSTIC inversion is performed. Furthermore, through EH-4 imaging system, the 2D electromagnetic imaging is available automatically and quickly. Final- ly, the isoline section of the resistivity is mapped by application of SURFER software. The conclusion is analyzed and interpreted ac- cordingly. The result analysis presents that this imaging system is with good effect in detection of ground water and solution cavity. Meanwhile, issues and interference factors in the application of the EH-4 electric conductivity imaging system are indicated.

关 键 词：EH-4电导率成像系统 电阻率 区域水位调查 溶岩探测 

分 类 号：P319.31[天文地球—固体地球物理学] P332.3[天文地球—地球物理学]