Abstract
The establishment of a structural safety monitoring model of a dam is necessary for the evaluation of the dam’s deformation status. The structural safety monitoring method based on the monitoring data is widely used in traditional research. On the basis of the analysis of the high arch dam’s deformation principles, this study proposes a structural safety monitoring method derived from the dam deformation monitoring data. The method first analyzes and establishes the spatial and temporal distribution of high arch dam’s safety monitoring, overcoming the standard artificial bee colony (ABC) algorithm’s shortcoming of easily falling into the local optimum by adopting the adaptive proportion and average Euclidean distance afterwards. The improved ABC algorithm is used to optimize the backpropagation (BP) neural network’s initial weight and threshold. The application example proves that ABC-BP model’s improvement method is important for the establishment of a high arch deformation safety monitoring model and can effectively improve the model’s fitting and forecasting ability. This method provides a reference for the establishment of a structural safety monitoring model of dam and provides guidance for the establishment of a forecasting model in other fields.
Highlights
On the basis of the analysis of the high arch dam’s deformation principles, this study proposes a structural safety monitoring method derived from the dam deformation monitoring data
Analyzing the monitoring data and establishing a structural safety monitoring model of dam are necessary to the evaluation of dam deformation status and are important links to carry out structural safety monitoring, instruct construction, and improve the design method
The traditional dam deformation safety monitoring model is established according to mathematics, mechanics, and dam engineering knowledge by confirming the major effect size’s affecting factors with the use of regression methods and the evaluation of various affecting factors’ parameters
Summary
Analyzing the monitoring data and establishing a structural safety monitoring model of dam are necessary to the evaluation of dam deformation status and are important links to carry out structural safety monitoring, instruct construction, and improve the design method. Wu derived a dam’s time effect displacement expression on the basis of concrete creep theory They used the periodic function to stimulate temperature and other periodic loads and used nonlinear least square method for parameter estimation [4, 5]. They proposed the establishment of the dam crack opening degree statistic model and analysis method, the time series analysis method of horizontal displacement of dam crest, and the multiple-arch dam displacement deterministic model’s theory and method. The traditional dam deformation safety monitoring model is established according to mathematics, mechanics, and dam engineering knowledge by confirming the major effect size’s affecting factors with the use of regression methods and the evaluation of various affecting factors’ parameters. Knowledge of mathematical models must be adopted to construct a high arch deformation safety monitoring model
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