| 摘 要： | In this paper, the mathematical theory of Fuzzy probability is used to solve the problems of rock mass mechanics due to excavation, especially the mining of ore. A mathematical model is developed for the movements and deformations of rock masses. The model is based on the assumption that the displacement and deformation of rock mass is a Fuzzy event, and from this model theoretical formulas are derived to calculate the displacement of rock mass due to excavation, especially the mining of ore.
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