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Corresponding Author

Elashram, Mohamed

Subject Area

Civil and Environmental Engineering

Article Type

Original Study

Abstract

Selecting an appropriate dewatering system is a key for successful completion of a project. The selection process depends mainly upon the subjective opinion of construction practitioners. Therefore, this experience has to be documented and stored in the company database for usage in future projects. However, such an evaluation involves a complex decision-making process associated with numerous uncertainty factors, imprecise information and judgments. The Analytical Hierarchy Process (AHP) has been widely applied to evaluate alternatives related to multiple decision criteria. Nevertheless, the AHP is incapable of dealing with the inherent subjectivity and ambiguity existing in the mapping of the decision-maker judgment to exact numerical values. This paper introduces an attempt to store the experts’ subjective experience using a fuzzy AHP approach in an attempt to determine the dewatering main criteria weights. The approach employs triangular fuzzy numbers and the α-cut concept to better represent the degrees of uncertainty held by the decision-maker.

Keywords

Dewatering Systems; dewatering construction method; Fuzzy sets; Fuzzy AHP Analysis; Fuzzy analytical hierarchy process; Alternative Evaluation

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