REGIONAL ENGINEERING GEOLOGICAL EVALUATION OF THE KEY HYDRAULIC ENGINEERING AREAS OF THE YANGTZE THREE GORGES

From an engineering geological point of view, this paper deals with the major regionat engineering geological problems in the key hydraulic engineering areas of the Yangtze Three Gorges. Regional engineering geological evaluation has been made on the occurrence of the reservoir silting according to the source of silts in the Yangtze River, and also on such problems as regional stability, induced reservoir earthquakes and bank stability in the areas according to regional geological conditions such as regional topography, geomorphology, strata and lithology, geologic structure and historic earthquakes.