TECHNIQUE AND APPLICATION OF MULTIPLE-ARRAY-SPACING DIPOLE-DIPOLE ELECTRICAL PROFILING IN COAL MINE

The field technique and procedure of underground dipole-dipole electrical profiling has been discussed in this paper. The effects of full-space and drift have also been discussed.The main ideas of interpreting underground dipole-dipole electrical data are described.In the end, an example is given in order to show the result of application.