Abstract：A geo-domain concept was developed to more accurately evaluate slope stability. The geo-domain was defined as a system consisting of a few geo-bodies located in a region with internal relationships. A coupling model was developed with a dada layer (input layer and response layer) and an analysis layer (model layer and computation layer). The model is driven by the data as the core. The dada input does not have to have a unified format and is related to the analysis layer and other sources. The geo-body model and response are independent of each other. The coupling of the geo-bodies is captured by the input layer and the computation layer. Thus, the geo-body analysis can be improved by using data from other geo-bodies in the geo-domain. The stability of slopes near a reservoir was analyzed using the coupling analysis theory of the geo-domain. The results show that the slope stability is significantly influenced by water level changes.
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