Lifting Scheme Evaluation of Chevron Gate of Ship Lock Based on Fuzzy Analytic Hierarchy Process

The analytic hierarchy process(AHP) method is not fit for obtaining the weight value of each plan in multi-plan evaluation problems.Taking lifting scheme of chevron gate of three gorges lock for an example,a multi-plan compositive evaluation method is proposed based on AHP and fuzzy theory.And then,the evaluation model of lifting scheme of chevron gate of ship lock is established and three kinds of schemes are compared.Finally,the lifting scheme of spanning lock chamber simply supported beam is selected as the optimum scheme.It shows that the scheme and evaluation model is reasonable and effective.