Abstract:

According to the regional geology background, sedimentary rocks mode and condition, and physical features of rocks, the characteristics of CSAMT section of the first stage of the west route of the South-to-North Water Transfer Project are analyzed to explore the strata structure, fault and groundwater condition. The CSAMT section is classified into four fragments in length of the total surveying line, which is 13 kilometers long. Results of comprehensive exploration technology of geophysics answer for the geology information of rock outcrops to fault zone and crash belt, which are verified by drilling data. CSAMT is worth popularizing in engineering of long embedded tunnel.

Key words: the first stage of the west route of the South-to-North Water Transfer Project, CSAMT, deeply-lying tunnel, resistance, forecast