摘要
边坡稳定性分析中影响因素众多，具有随机性和模糊性的特点，常采用各种模糊综合评价方法进行边坡稳定性分析。但在应用中，很难找出一种合适的方法来确定各影响因素的权重，通常是由专家凭经验给出权重大小，具有一定程度的主观性和随意性，使这类方法的应用受到了一定的限制。考虑到以上不足，提出了边坡稳定性主客观权重多级模糊模式识别分析模型，该模型采用模糊模式识别交叉迭代模型的客观方法确定权重的初始解，然后视需要按二元比较模糊决策简捷方法对初始解作必要的主观调整，使专家经验的重要性和数值计算的优越性得到了充分的体现。最后应用实例进行对比分析，以说明其方法的合理性。
The analysis of slope stability is influenced by numerous factors with vagueness and randomicity. Although fuzzy comprehensive evaluation method is used to analyze slope stability, it is difficult to determine the weights of different factors appropriately, which are usually given by experts experientially. Thus, the application of the fuzzy comprehensive evaluation method is limited to certain extent. Considering the above-mentioned disadvantage, a multi-pole fuzzy pattern recognition model of subjective and objective weight determination is presented to analyze slope stability, in which the initial weights are given objectively by the alternative iteration model, and then, an appropriate adjustment may be made subjectively according to the simplified fuzzy decision method of two-element comparison. The importance of the expert and the advantage of the numerical calculation are fully considered in the model. The rationality of this method is shown by a comparative analysis of engineering case.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A01期5243-5247,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
边坡稳定性
相对隶属函数
主客观综合法
模糊模式识别
slope stability
relative membership function
subjective-objective comprehensive method for weight determination
fuzzy pattern recognition
