Banca de DEFESA: JAILSON SILVA ALVES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JAILSON SILVA ALVES
DATE: 23/02/2023
TIME: 09:00
LOCAL: Pós-Graduação Engenharia Civil
TITLE:

Application of the Synthetic Aperture Radar Interferometry (InSAR) Technique in Geotechnical Monitoring

KEY WORDS:

InSAR; monitoring; geotechnics; slopes; subsidence; dam.

PAGES: 165
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Interferometry is a SAR (Synthetic Aperture Radar) radar image processing technique that allows obtaining Digital Elevation Models, surface displacement measurements and assistance for monitoring large areas and/or engineering constructions. In this sense, this paper aims to present and discuss the contributions of SAR interferometry (InSAR) for monitoring and geotechnical follow-up, highlighting its potentialities and limitations through the technical literature. In order to do that, literary research was carried out in a hybrid format, with a systematic review on the proposed theme, choosing concepts, formulations and aspects related to the operation of the technique and a bibliometric survey through the SCOPUS platform on InSAR applications with emphasis on monitoring geotechnical, choosing case studies from the literature in the areas of subsidence, slopes and dams. As a result, theoretical aspects of the operation of SAR radars are addressed, including their characteristics, orbital and terrestrial systems, types of imaging geometry and principles of image processing using interferometry. The analysis through the bibliometric review presents an overview of the publications in the last five years, showing the number of publications, the list of the most cited authors, as well as a technical approach to the current state of dissemination of the InSAR theme in geotechnics. Case studies in the literature with an emphasis on geotechnical applications allowed exploring the potential of InSAR, evidencing its capabilities for observing large areas, time series of long-term displacement, aptitude for composing monitoring programs, directing the implementation of instruments in situ and association of interferometric data with other types of data, such as weather. In addition to InSAR's capabilities, this paper also addresses some precautions when using the technology, highlighting its advantages, limitations and the tool's evolution prospects for geotechnics and other areas. From the study approach, it was possible to highlight technical aspects, as well as explore the field of possibilities of InSAR technology for traditional areas of study of geotechnics. In this way, the paper contributes to the understanding and dissemination of this knowledge, aiming to highlight InSAR characteristics for geotechnical monitoring systems.

COMMITTEE MEMBERS:
Presidente - 2749584 - IGOR FERNANDES GOMES
Externo ao Programa - 1162231 - SAUL BARBOSA GUEDES - nullExterno à Instituição - WENDSON DE OLIVEIRA SOUZA - UFPI