Banca de DEFESA: JULIANA TELES DINIZ GONÇALVES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JULIANA TELES DINIZ GONÇALVES
DATA : 18/02/2019
HORA: 10:30
LOCAL: PROGRAMA DE PÓS GRADUAÇÃO EM ENGENHARIA CIVIL
TÍTULO:

INTEGRATION OF THE GEOPHYSICAL METHOD OF ELETRORRESISTY AND SPOT GEOTECHNICAL SURVEYS IN THE STUDY OF DIFFERENT SOILS OF THE METROPOLITANES REGION OF SALVADOR (RMS)

PALAVRAS-CHAVES:

Keywords: Correlation; ERT; SPT

PÁGINAS: 143
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Geotécnica
RESUMO:

The characterization of the subsoil and the determination of the resistance of the
ground layers in depth are prerequisites for the calculation and choice of the type of
foundation to be used in a civil engineering work. This information is usually acquired
through simple reconnaissance surveys (SPT), which are not sufficient for a complete
description of the terrain due to its punctual character. The objective of the research
was to evaluate the use of the geophysical method of electroresistance, using the electric

walking technique (CE) as an auxiliary tool for the geotechnical diagnosis in investi-
gations using simple reconnaissance drills (SPT) in three different areas of the Region

Metropolitan of Salvador, which have different geological-geotechnical characteristics.
The applied methodology was shown as an attractive alternative for the extrapolation
of lithological and geotechnical information in each area, since it allowed the continuous

visualization in two dimensions (xz) of the parameter of electrical resistivity, which reve-
als the soil statigraphy and also allows to reach larger research depths than conventional

surveys. From the results presented, it is concluded that, in general, there is an excellent
correlation between penetration resistance and electrical resistivity in areas I, II and III,
with a mean determination coefficient of 66.65 %, 87,9% and 91.55%, respectively. The
variation of these coefficients shows the influence of the geotechnical and lithological
characteristics, mainly of the mineralogical composition; particle size fraction of soils;
presence of organic matter and saturation at each site. The integrated use of these

technologies of direct and indirect investigation can bring speed to the geotechnical in-
vestigations, executing the services of less impact to the environment, in less time and

with smaller costs when compared to the realization of new probes SPT.

MEMBROS DA BANCA:
Externo à Instituição - HERALDO LUIZ GIACHETI - UNESP
Presidente - 287296 - MARCO ANTONIO BARSOTTELLI BOTELHO
Interno - 1219972 - SANDRO LEMOS MACHADO
Externo ao Programa - 2239975 - SUZAN SOUSA DE VASCONCELOS