Application and Study of Magnetotellurics in Hydropower Project

Based on results of the supplementary feasibility study geological and geotechnical investigation of some hydropower project about the active fault, which is partly buried by thick quaternary soil and partly exposed fault that triggered the earthquake ( M7.6 ) of Kashmir in 2005, Comprehensive methods such as geological mapping, drilling, borehole TV, acoustic wave test and testing on-site, are applied, it ascertains location, strike (orientation and dips), width of affected band, approximate depth, properties and integrity of the rocks within the active fault, developing trend and distribution range of the active fault. Interrelations of different methods and advantages or disadvantages are discussed and analyzed, at the same time, key points, difficulties and working procedures during the geological and geotechnical investigations are summarized, lot of data, results and figures are offered and analyzed,these methods and procedures can be mirrored and inferred in the future similar project.