Abstract：The methods and technique applied in this paper are practical investigation, finite element analysis, separated element simulation, foundation friction test，quantitative analysis and theoritical calculations, etc. For analyzing the characteristics of the river valley where the Beipanjiang Railway Bridge is situated, the authors propose a method of synthetic analy?ses. The synthetic analyses consist of the analysis of engineering geological conditions of the river bank slopes,the possible mode of strain failure of slope rock mass，the developing regu?larity of strian，the displacement and stress conditions of slope rock mass，the general stabili?ty of bank slopes ,the stable slope angle of bank slopes，the disposition of bridge pier founda?tions and its corresponding safety coetticients. The results of the synthetic analyses are also described in this paper.
1995, Vol. 12 
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