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Abstract Due to the section form of the high filling channels has a great influence on the additional stress of filling body and foundation. A mechanism that the real additional stress below the theoretical value of each soil layer at the center line of high filling channel?s filling body was uncovered through the ANSYS FEM，after a calculation model with a variable section form was established. The additional stress correction coefficient of the filling body and additional stress ratio of the foundation in the high filling channels were proposed. The effects of the filling body?s slope ratio and high aspect ratio to its additional stress correction coefficient and the slope ratio，high aspect ratio and relative depth to the foundation?s additional stress ratio were both clarified. And a calculation method for the additional stress of the filling body and the foundation of the high filling channels was established accordingly. The study result shows that，it could easily and accurately calculated out the additional stress of each filled soil and the additional stress of different depths in the foundation at the center line of the channels by the calculation method，which only needed to know the slope ratio，top width， filling height，and specific weight of the filling body. And it has an important guiding significance to calculate the settlement process for the high filling channels in the North Water Transfer Project.
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2015, Vol. 34 
