摘要
为比较分析高密度电法不同装置对探测异常地质体的效果,通过建立高阻异常体和隐伏直立低阻体地电模型,正演计算了不同装置类型下的视电阻率,并加噪进行二维电阻率反演。各种装置的反演结果表明:在探测地下高阻异常体时,温纳α、β、γ装置优于其他装置,揭示异常位置与形态相对较好;对于隐伏直立低阻体而言,温纳β装置和三极装置探测效果好,其中温纳β为最理想装置。实例验证表明,温纳α、β、γ装置在探测地下防空洞时体现了其装置的优越性,验证了理论模拟结论的正确性。
In order to comparatively analyzing the effect of exploring the unusual geologic bodies with different devices of high-density electrical method, the authors forward calculated the resistivitiy of different devices and inversed the two-dimension resistivity adding noise through building high resistance anomalous body and latent erected low resistance geoelectric model. The inversion results of various devices show: when high resistance anomalous body is explored underground, wenner α,β and γ devices are better than others in exploring anomalous location and shape; for latent erected low resistance body, the wenner β and three-pole devices have good prospecting effect with the best device is wenner β. The experiment indicate that wenner α, wenner β and wenner γ devices perform their advantages in exploring underground air-raid shelter and verify the correctness of conclusion from theoretical modeling.
出处
《世界地质》
CAS
CSCD
2011年第3期451-458,共8页
World Geology
基金
国家自然基金项目(41004047)
中南大学自由探索项目(201012200189)联合资助
关键词
高密度电法
不同装置
反演
异常探测
high-density electrical method
different devices
inversion
anomaly detection