Abstract
In order to completely consider affects of various subjective and objective factors for decision of soft ground improvement, according to quantitative index and qualitative index influencing soft ground improvement, a fuzzy integral decision model about definitive set was presented, based on improved Sugeno fuzzy integral on the basis of fuzzy measure. A computer program for applying the model to solve multi-objective decision making problem was given. The feasibility of its model was verified through the optimal choice for decision of soft ground improvement in practical engineering. The given example shows this model can be successfully used to make decision about soft ground improvement method of the expressway. At the same time, the decisional model above is useful and effective for evaluating the other complicated systems.
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