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Safety assessment for seawall based on constrained maximum entropy projection pursuit model

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Abstract

The safety of seawalls is crucial. A scientific and effective safety evaluation method for seawalls is an important measure to protect seawall safety. Based on the monitoring information, seepage pressure, tide level, and rainfall were taken as the safety assessment indexes of seawalls. The projection pursuit model was improved by taking the primary and secondary relations of the assessment indexes known in the professional field as constraints. The water cycle algorithm was used to solve the projection vector, and the weights of the safety assessment indexes of the seawalls were calculated using the improved projection pursuit model. The safety assessment method of seawalls was established by Fuzzy Theory. A method where the maximum membership degree principle was replaced by the comprehensive safety grade value was put forward to determine the seawall safety grade. The analysis of examples showed that the seawall safety assessment results of the constrained maximum entropy projection pursuit model conformed to the objective reality, and were more scientific and reasonable than the maximum entropy projection pursuit model and the analytical hierarchy process model.

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Acknowledgements

This study was supported financially by the Research Fund of the Key Laboratory of Geological Hazards in Three Gorges Reservoir Area (China Three Gorges University) (No. 2015KDZ03), and the Science and Technology Research Project of Anhui Province, China (No. 1604a0802106).

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Authors and Affiliations

  1. School of Civil Engineering, Hefei University of Technology, Hefei, 230009, People’s Republic of China

    Zhuguang Lan & Ming Huang

  2. Key Laboratory of Geological Hazards On Three Gorges Reservoir Area (China Three Gorges University), Ministry of Education, Yichang, 443000, People’s Republic of China

    Ming Huang

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  1. Zhuguang Lan
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  2. Ming Huang
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Correspondence to Ming Huang.

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Lan, Z., Huang, M. Safety assessment for seawall based on constrained maximum entropy projection pursuit model. Nat Hazards 91, 1165–1178 (2018). https://doi.org/10.1007/s11069-018-3172-8

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  • DOI: https://doi.org/10.1007/s11069-018-3172-8

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