Abstract
It is well known that the groundwater in rock slope mainly flow joint, fracture zone, fault and discontinuity plane. In this paper, using Dipole-Dipole electric resistivity method, the electric resistivities are continuously measured in a rock slope during five rain fall patterns with the measuring line crossing a fracture zone, and the relationship between the change of apparent electric resistivity and the rain fall are discussed.
As the results, making a comparison between fracture zones and the other rock mass, the characteristics of the change of apparent electric resistivity is quite different, and especially, it is recognized that the relationship between the change of apparent electric resistivity and rain fall can be approximated with an exponential function.
