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

Zhuguang Lan () and Ming Huang ()
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Zhuguang Lan: Hefei University of Technology
Ming Huang: Hefei University of Technology

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2018, vol. 91, issue 3, 1165-1178

Abstract: 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.

Keywords: Monitoring information; Projection pursuit; Constraint condition; Water cycle algorithm; Seawall safety assessment (search for similar items in EconPapers)
Date: 2018
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