ABSTRACT
Resistivity Imaging (RI) has been used in various applications of subsurface investigation, geohazard evaluation, and forensic study. This chapter presents some case studies where RI has been successfully used to evaluate mechanically stabilized earth, earthen dams, and slope stability, and to investigate bridge foundations and bioreactor landfills. However, it should be mentioned that the use of RI is not limited to these field. It can be used as a compliment to conventional testing in most geotechnical, geoenvironmental, and geological studies. RI technics has been successfully utilized to investigate the seepage path of dams. Many earth dams and levees have seepage problems which require periodic maintenance to prevent potential catastrophic failure. Moreover, many dam owners are reluctant to drill through the earth dam for investigative purposes. Since the 2D resistivity imaging is a non-invasive method, it can be utilized to locate the extent and depth of the possible seepage areas in earth dam.
