Proposal for verification of the stability of observation pillars for monitoring of structures by GPS : the case of ITAIPU Dam
Netto, Nicola Pacileo ... [et al.]
The ITAIPU hydro-electrical power plant is situated in the Southwest of Brazil on the Parana River, which forms the border with Paraguay. The generation of electrical energy began in 1981. ITAIPU Dam still the World's largest with regarding to electrical power installation and the second largest in water volume. One of the aspects for the evaluation of security is the displacement of structures, which has to be monitored and analyzed in different ways. For this reason, different techniques and methods, appropriate for the different types of the structures, have to be applied. At the ITAIPU Dam the measurement of displacements is performed by plumb lines and also by geodetic observations based on a network of 7 observations pillars downstream the dam. The purpose of this paper is to describe new procedures to verify the stability of the observation pillars of the base control network by GPS.
Event: XXIII International FIG Congress : Shaping the change
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