Fuzzy Judgment Of The Risk Level Of Construction Period Under Entropy Theory

Under the background of large-scale project construction and continuous expansion,China's investment in engineering industry is also increasing.If long-term engineering construction lacks scientific and effective management methods,it will inevitably cause certain risks,of which engineering risks mainly have construction period.Risk,investment risk and quality risk.Through a large number of literatures,It is considered that the control of the progress in the construction of the project,especially the assessment of the construction period risk,is important for the improvement of the overall quality of the project and the achievement of the expected economic benefits.According to the uncertainty of the construction period risk,the fuzzy comprehensive evaluation method is used to evaluate it,which solves the problem of fuzzy risk factors to some extent.The entropy theory is used and the conversion of information entropy and entropy weight is used to determine the weight of the risk indicator,and then the main source of risk can be determined.In addition,comprehensive consideration is given to the analysis of the factors affecting the construction period risks,a scientific and reasonable risk assessment index system for hydraulic engineering construction period was established,and the related data processing was carried out for each risk index in combination with the constructed entropy model and evaluation model.The evaluation result of this paper is to use the fuzzy operator to perform the matrix operation of the evaluation result vector and the index weight to obtain the comprehensive score value,and then combine the membership level function graph and the maximum membership degree principle to evaluate the level of the construction period risk.Applying the established fuzzy comprehensive evaluation model based on entropy weight to the case study of reservoir engineering,the weights of the four primary indicators are calculated from the weights of the secondary indicators of each group in the indicator system,judging the risk from the single factor and using the score to determine the risk of construction period caused by human factors is more likely.Finally,through comprehensive evaluation,it is determined that the construction period risk level of the reservoir project is medium.The rationality of the calculation results indicates that the entropy theory and the fuzzy comprehensive evaluation method are applicable to the evaluation of engineering risks.