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由于岩石的物理-力学参数的不确定性的特征,本文基于模糊数学的概念,提出了一个岩石工程分类的新方法。首先把岩石分为最好岩石、好的岩石等k类,每一类分别对应一模糊集(λ_i,i=1,2,……k)。对一项实际工程所涉及的岩石,先就抗压强度、地下水等n个方面作单因素评价,并统一转换成分数,获得n个模糊集。再拟定m组权数,说明以上各个因素在综合评价中所占比例的各种可能性,因此对每一组权组即可得一综合评价。最后得出岩石的工程分类。
Due to the uncertainty of the physical-mechanical parameters of rock, this paper proposes a new method of rock engineering classification based on the concept of fuzzy mathematics. First, the rocks are divided into k-classes such as the best rocks and good rocks, and each class corresponds to a fuzzy set (λ_i, i=1, 2, ..., k). For a rock involved in a practical project, first evaluate the single factor for compressive strength, groundwater, etc., and convert the number of components to obtain n fuzzy sets. The m groups of weights are further elaborated to illustrate the various possibilities of the proportions of the above factors in the comprehensive evaluation. Therefore, a comprehensive evaluation of each group can be obtained. Finally, we got the engineering classification of rock.