Banca de DEFESA: HANNA BARRETO DE ARAÚJO FALCÃO MOREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : HANNA BARRETO DE ARAÚJO FALCÃO MOREIRA
DATE: 24/02/2023
TIME: 09:00
LOCAL: Pós-Graduação Engenharia Civil
TITLE:

GNSS Positioning in Geotechnical Monitoring: Applications, Advantages, Limitations and Trends

KEY WORDS:

GNSS; monitoring; geotechnics; slopes; subsidence; dam.

PAGES: 170
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

The positioning method with GNSS is shown to be a viable alternative for monitoring displacements on the Earth's surface. Therefore, the objective of this work was to present the functioning and operation of this monitoring technique, as well as its applicability in the geotechnical monitoring program, to be used on slopes, subsidence areas and dams. The research was developed through the analysis of technical publications, in a hybrid way, that is, a literature consultation to establish important concepts, highlighting the functioning and operation of the positioning method with GNSS, as well as a bibliometric review in the database of the Scopus, with scientific articles on its application for monitoring slopes, subsidence and dams. Initially, theoretical concepts about GNSS are presented, in particular about the types of existing constellations, the associated errors, the positioning methods, in order to establish a foundation for the applications. The bibliometric review presented, in a quantitative way, the articles that were published in the last five years, the institutions involved, and the related journals, among others. From then on, there is an analysis of the publications, and it is possible to highlight that the positioning method with GNSS allows the measurement of surface displacements in a remote, automated and real-time way, providing readings for the three directions in short time intervals and with high precision, being able to be integrated with other instruments (rain gauge) and with a control and warning system. This work also presents some contributions with regard to care for the use of the technique, advantages and limitations, and trends in advance to improve positioning and accuracy methods. Therefore, this work seeks to add knowledge of the GNSS positioning technique, also demonstrating the applications in the geotechnical environment.

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