Safety monitoring model with small samples of concrete dam

Study of concrete dam safety monitoring model is always a hot and difficult problem in the field of dam safety monitoring. In this paper, the evolution of concrete dam is regarded as a dynamic process. In view of less monitoring data and strong correlation among variable factors, a safety monitoring model with small samples of concrete dam is established through a combination of Bootstrap method of concrete dam structural abnormality diagnosis and partial least squares regression analysis method. And this model is applied to the analysis of horizontal displacement of a concrete gravity dam. Results show that the fitting precision of this model is higher, the prediction effect is better and the explanation is more reasonable. This contribution provides a scientific basis for concrete dam safety monitoring analysis.