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深基坑支护决策是典型的非结构或半结构决策问题,对其进行量化研究对于实现工程方案的科学决策具有重要的理论意义与实践价值.采用基于Vague-Fuzzy理论的深基坑支护决策评价方法.在研究评价指标Vague值确定方法的基础上,建立了Vague集近似转化为Fuzzy集的方法与模型,得到的模糊隶属度并可根据参数k的数学性质有目的地进行调整,从而实现深基坑支护决策的模糊评价.以某大厦深基坑支护拟采用的4种方案评价为例,对所建模型进行了实例研究,结果表明该方法是科学、实用的.
Deep excavation support decision-making is a typical unstructured or semi-structural decision-making problem, to carry out quantitative research for the realization of scientific decision-making program has important theoretical and practical value.Using Vague-Fuzzy theory of deep foundation pit support Decision-making evaluation method.On the basis of studying the method of determining the Vague value of the evaluation index, a method and a model of approximating the Vague set into Fuzzy sets are established. The obtained fuzzy membership degree can be purposefully adjusted according to the mathematical properties of the parameter k The fuzzy evaluation of deep foundation pit support decision-making is carried out.Using the four schemes proposed for the deep foundation pit support of a building as an example, the model is studied by examples. The results show that the method is scientific and practical.