Technology Study of Detect Fault in the Deeply Buried Tunnel by CSAMT

The detecting Buried fault of the deeply Buried tunnels is the important technology question in the select tunnel line and construct tunnel. Geologic survey, drilling and geophysics is the best of detect means in the last time. It has obviously characteristic that tunnel is deeply Buried faults, longer line tunnel, complexity and levity geologic condition and difficultly detect technology etc. so that it has a little success detect sample in the china or in the other country. This paper discuss the application technology of CSAMT to detect deeply Buried tunnels faults, based on the project of South-to-North Water Transfer. Meanwhile it brings forward the revise method of near filed question and static question.