Banca de DEFESA: DANISETE PEREIRA DE SOUZA NETO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : DANISETE PEREIRA DE SOUZA NETO
DATE: 30/05/2023
TIME: 09:00
LOCAL: Pós-Graduação Engenharia Civil
TITLE:

EVALUATION AND PREDICTION OF THE BEHAVIOR OF EMBANKMENT BUILT ON SOFT SOIL: Threedimensional Modeling and Geotechnical Monitoring

KEY WORDS:

embankment on soft soil; geotechnical monitoring; stability control; three-dimensional numerical modeling; modified cam-clay.

PAGES: 205
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Embankments on soft soils represent a significant challenge in geotechnical engineering due to the complexity associated with low shear strength and high compressibility. The general objective of this research is to develop a three-dimensional modeling of a embankment built on soft soil, considering the analysis of pore pressure and vertical and horizontal displacements, aiming to contribute to the understanding of the behavior of the embankment. The analysis and interpretation of geotechnical monitoring seeks to improve the understanding of the three-dimensional model, the embankment stability control and its possible practical applications in geotechnical engineering. The Rocscience RS3 program was used for three-dimensional modeling and, when necessary, two-dimensional analysis was applied with the RS2 program, also from Rocscience. Monitoring was carried out through the interpretation of instruments such as inclinometer, settlement plate, surface mark and pneumatic piezometer. Through the methods of controlling the stability of employees, an imminent rupture in embankment 5 was identified, which was later confirmed. It was also possible to observe that embankment 3 was at risk of rupture and work stoppage, providing a momentary safety condition. The analysis of vertical displacements in different embankment revealed different and variable behaviors depending on the construction methods adopted and the local conditions of the soft soil deposit. The results of the 2D and 3D numerical simulations showed a good prediction of the embankment behavior, considering the Modified Cam-Clay model.

COMMITTEE MEMBERS:
Externa à Instituição - BERNADETE RAGONI DANZIGER - UERJ
Presidente - 2749584 - IGOR FERNANDES GOMES
Externo à Instituição - RICARDO NASCIMENTO FLORES SEVERO - IFRN
Externo ao Programa - 1549099 - ROBSON RIBEIRO LIMA - nullExterno ao Programa - 1162231 - SAUL BARBOSA GUEDES - null