Method of performance evaluation of dams by instrument clustering – Application to Itaipu
DOI:
https://doi.org/10.24849/j.geot.2014.132.08Keywords:
Safety of dams, Instrumentation, Instrument clusteringAbstract
A proper dam instrumentation system should be able to detect variations in readings over its life cycle as a result of aging and environmental changes. The study about how the interaction between readings from different instruments occurs and how environmental variables affect them can be very useful to understand the mechanisms that affect the behaviour of a dam. This paper presents a method for evaluating dam performance by means of clustering instruments with similar behaviour, using linear and non-linear statistical correlations as an analysis tool for auscultation instruments. Through the proposed study, it is possible to detect malfunctioning instruments and anomalous dam behaviour, besides collecting evidence about the geotechnical mechanisms that result in similarity between both situations. In order to exemplify and validate the proposed method, piezometric data from the Itaipu Binational dam have been studied.
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References
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