Bibliographic citations
Basurto, L., (2019). Aplicación de sensores de fibra óptica a la medición de esfuerzos y deformaciones en capas de suelos [Tesis, Universidad Nacional de Ingeniería]. https://repositorio.uni.edu.pe/handle/20.500.14076/22104
Basurto, L., Aplicación de sensores de fibra óptica a la medición de esfuerzos y deformaciones en capas de suelos [Tesis]. PE: Universidad Nacional de Ingeniería; 2019. https://repositorio.uni.edu.pe/handle/20.500.14076/22104
@mastersthesis{renati/1750573,
title = "Aplicación de sensores de fibra óptica a la medición de esfuerzos y deformaciones en capas de suelos",
author = "Basurto Pinao, Ladislao Jesús",
publisher = "Universidad Nacional de Ingeniería",
year = "2019"
}
The materials constituting the tracks of roads, dirt roads, the foundation soil, as well as structural elements, as usable materials for embankments, landfills, even as building materials in levees, dams or other works of public lands, are subject to static or dynamic loads of various magnitudes that are transmitted to the subfloor. It is therefore necessary to assess and monitor the parameters conforming soil mass. Currently, there is a need to improve evaluative techniques thereof. In this regard, Inaudi (1997) mentioned that, in the absence of an effective implementation, a large number of structures are not properly sensed; worrying observation, when you consider that many of them are evaluated from monitoring systems that do not meet the necessary requirements and provide inaccurate data. So, to overcome this deficiency is linked to the optimization of monitoring techniques structures (structural health monitoring) - siglas SHM. So, it is necessary to develop systems that use sensors and instrumentation easily accessible, economical and secure, with which we can obtain reliable and accurate data. Therefore, taking into account the relevance it has acquired in the last decade the use of fiber optic sensors in various fields of science and engineering, in this thesis we propose and show the use of fiber optic sensors based on long period (LPGs) grating as an alternative means for securely and reliably measure the deformation and stresses that are transmitted in soil layers. The thesis shows the design, manufacture and application of LPGs sensors. Manufactured sensors were applied to measurements of transmission of stresses and strains of a soil type. To validate the values obtained, we obtained the elastic constants of the ground, by fitting of Bousinesq model with our experimental data. These values were compared with those obtained with other techniques showing good agreement with those reported by the alternative techniques. Currently, there are several investigations that support the application of fiber optic sensors in structural monitoring. Therefore, the contribution of this thesis lies not only to reaffirm the use of such sensors to optimize the measurement of physical parameters of the soil, but also showing (for first) application of LPGs sensors for measuring force transmission and strains in soil layers.
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