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Hydrostatic seasonal state model for monitoring data analysis of concrete dams

机译:静水季节状态模型用于混凝土大坝监测数据分析

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摘要

Based on the idea that time-effect deformation can be regarded as a state vector indicating the characteristics of concrete dams, a hydrostatic seasonal state (HSS) model is proposed for improving the accuracy of the data analysis of concrete dams. According to the theory of non-stationary time series, the state equation of the HSS model is represented for objectively extracting the time-effect deformation from monitoring data of total deformation and to interpret its evolution accurately. In this study, the HSS model is applied to an arch dam case, and it is estimated by using the expectation-maximisation algorithm. The results illustrate that the HSS model can efficiently estimate the time-effect deformation from monitoring data of total deformation. Compared with the hydrostatic seasonal time model, the proposed HSS model shows an improvement in fitting precision and prediction ability.
机译:基于将时效变形视为指示混凝土坝特征的状态向量的思想,提出了一种静水时态模型,以提高混凝土坝数据分析的准确性。根据非平稳时间序列理论,表示了HSS模型的状态方程,用于从总变形监测数据中客观提取时效变形,并准确地解释其演化。在这项研究中,HSS模型应用于拱坝案例,并通过使用期望最大化算法进行估计。结果表明,HSS模型可以从总变形监测数据中有效估计时效变形。与静水季节模型相比,本文提出的HSS模型在拟合精度和预测能力上均有所提高。

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