Abstract
The risk factors in the safety evaluation of antifloating anchor system of underground structure have the characteristics of complexity, grey, and fuzziness. Based on the Delphi method, analytic hierarchy process (AHP), and entropy weight method, this paper establishes a three-level evaluation index system based on four main risk factors and calculates the subjective and objective comprehensive weights of the index according to the comprehensive weighting method. It not only takes into account the valuable experience of the expert group but also reflects the objective impact of the subjective score on the system. On the basis of the above research, the grey-fuzzy safety evaluation method of antifloating anchor system is established by using the grey theory and the relevant theory of fuzzy mathematics. The reliability of the method is verified by an example, which has certain theoretical significance and application value.
Highlights
In recent years, the development and utilization of modern urban underground space resources has become one of the important trends of geotechnical engineering development in the 21st century [1, 2]
Is paper establishes a three-level index system for safety evaluation of antifloating anchor system and determines the index weight based on the Delphi method, analytic hierarchy process (AHP), and entropy weight method
On the basis of the above research, based on the characteristics of risk analysis of antifloating anchor system itself, the grey-fuzzy evaluation model is used for comprehensive evaluation and analysis of safety. e method proposed in this paper combines the advantages of various decision-making theories, which makes the safety evaluation results more reasonable and scientific, and has certain theoretical significance and application value
Summary
The development and utilization of modern urban underground space resources has become one of the important trends of geotechnical engineering development in the 21st century [1, 2]. In recent years, researchers in other fields have proposed a variety of safety evaluation methods, such as analytic hierarchy process, fuzzy comprehensive evaluation, and grey clustering theory [9,10,11,12]. Is paper establishes a three-level index system for safety evaluation of antifloating anchor system and determines the index weight based on the Delphi method, analytic hierarchy process (AHP), and entropy weight method. It takes into account the valuable experience of expert groups and reflects the objective impact of subjective score on the system. On the basis of the above research, based on the characteristics of risk analysis of antifloating anchor system itself, the grey-fuzzy evaluation model is used for comprehensive evaluation and analysis of safety. e method proposed in this paper combines the advantages of various decision-making theories, which makes the safety evaluation results more reasonable and scientific, and has certain theoretical significance and application value
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