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- Title
水工盾构隧道施工安全风险综合评价与判定.
- Authors
汪伦焰; 王若腾; 赵荣生
- Abstract
With the development and utilization of underground space, shield method has become the mainstream of tunnel construction. In recent years, the randomness and fuzziness of the risk are often ignored in the risk assessment of shield tunnel. There is no comparison between the assessment results and it is impossible to determine the important factors. Therefore, in order to solve the uncertainty of the risk assessment process, a comprehensive risk assessment model of shield tunnel construction based on entropy weight set pair analysis cloud model was proposed. Firstly, the evaluation index system was constructed from the aspect of 5M1E by literature frequency method; secondly, the index weight was calculated by entropy weight method and the risk factors were preliminarily determined based on set pair analysis theory; finally, the safety risk cloud model of shield tunnel construction was constructed by integrating the randomness and fuzziness of expert evaluation based on cloud theory. The construction safety risk was evaluated by cloud model and the final evaluation results were obtained by comparing the risk factors with the preliminary judgment results. Through the application of the model in a water resources allocation project, it is verified that the evaluation model is effective and feasible.
- Publication
Yellow River, 2021, Vol 43, Issue 5, p142
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2021.05.028