Application of 3D electrical resistivity tomography in the exploration of unstable slope
High-density electrical tomography has been widely used in geological hazard evaluation in recent years.3D electrical resistivity tomography has achieved true 3D measurement,and has the advantages of large amount of data information and limited distribution of poles by the site.3D electrical resistivity tomography of underground media can be obtained through 3D inversion,and geological bodies with obvious electrical differences can be inferred and interpreted in combination with geological and physical data.In this paper,the 3D electrical resistivity tomography prospecting is carried out on the unstable slope of the Xierdaohe,the interface between the tailings dam and the basement is divided,the thickness of the dam deposit is calculated,and the 2D inversion resistivity section is compared with the resistivity section extracted from the 3D inversion resistivity model,the similarities and differences between the two and the influencing factors are analyzed,and the advantages and limita-tions of the two working methods are summarized.
3D electrical resistivity tomography3D resistivity inversionunstable slopetailings dam