زمین‌شناسی سیستم انــــحراف آب و سازه‌های جنبی سد گاران

Water diversion system, in large river structures like dams, includes coffer dam in upstream site and a canal for water diversion and convenience that it usually designs in shape canal or tunnel. This structure transfers water, from upstream to downstream during dam building period. The geology of parts of diversion system and other lateral structures of Dam has been ever important.Rock masses of foundation in Garan reservoir Dam site are including metamorphic rocks of slate and philite. For the reason, to weak rocks along tunnel, in this project, has in minded any alternatives for rock masses stability. These rocks on the basis of field and laboratory studies have the same as follows