A Decision-making Method Using Evidential Reasoning for Earthwork Haul Road Under Sloping Excavation Pit Construction
In order to optimize the earthwork haul road scheme under slope excavation pit construc-tion,a decision-making method for earthwork haul road in sloping excavation pit using evidential rea-soning is proposed.Three aspects including the cost of haul road,the transportation efficiency and en-vironmental impact are selected to construct the decision indicator system for earthwork haul road in sloping excavation pit.According to the evaluation value of each alternative on different indexes,the weight of each index is determined by entropy method.On the base of that,the evaluation value of each index is regarded as the evidence to support the decision-making result of the alternatives,and the evidence fusion algorithm is used to obtain the criterion of the optimal scheme,which comprises both the reliability distribution of the alternatives belonging to different evaluation levels,and the comprehensive utility value of each scheme.The case studies show that the decision-making method proposed in this paper is feasible.However,to a certain extent,both the information uncertainty and the choice of utility value will affect the final decision-making result.Compared with the traditional weighted summation method,the proposed method based on evidential reasoning can not only provide the comprehensive utility value of each scheme for the decision-maker,but also the credibility distri-bution of each alternative at different levels can be presented.
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