Estudio de la instrumentación a utilizar en las presas de tierra del proyecto Pacalori

Abstract

This research focuses on defining the necessary instrumentation for Lechugal 2 earth dambelonging to PACALORI project (Plan de Aprovechamiento y Control de Aguas de la Provincia de Los Ríos) and to serve as a methodology in the design of instrumentation for the remaining twelve dams of the project.Previously, the monitoring requirements presented in an earth dam, the type of instrumentation used and their location in sensitive or critical parts of the dam, which may damage or significant changes during operation were investigated.After analyzing all these parameters and integrate them to the economy of the project, which is presented as an obstacle in the selection of instruments by their costs. We propose the use of Casagrande piezometers to control the higher current line (LCS for its acronym in Spanish) and the water table. The use of survey monuments for the observation of the horizontal and vertical motions are also investigated, in order to generate a minimal monitoring data on analyzing the behavior of the dam. To locate the piezometers and build the monuments with recommended dimensionsshapes and installation levels, as well as the methodology of data collection for posterior analysis.Finally, with this information we proceed to the location of the instrumentation in the sections of the dam for their presentation in mapsthat will be used during construction.