BEHAVIOR OF GEOGRIDS IN REINFORCED SOIL WALL AND PULLOUT TESTS / COMPORTAMENTO DE GEOGRELHAS EM MURO DE SOLO REFORÇADO E EM ENSAIOS DE ARRANCAMENTO
AUTOR(ES)
LEONARDO DE BONA BECKER
DATA DE PUBLICAÇÃO
2006
RESUMO
The behavior of a 5m high and 1700m long reinforced soil wall was studied in this work. The wall constitutes the upper part of a dike constructed in Poços de Caldas-MG, Brazil, by Alcoa Aluminum S.A. to contain Bauxite residues. The wall was constructed using geogrids and a residual silty-clay. Two wall sections were instrumented. Horizontal and vertical displacements were monitored during construction. An 2.6m high experimental fill was constructed to conduct 16 large-scale pullout tests. Soil laboratory tests were conducted to define the strength and deformability parameters. The construction of the wall and the pullout tests were simulated using the PLAXIS 2D v.8 Finite Element Method code. The numeric predictions agree well with the field results. The measured horizontal displacements show good agreement with results reported by other authors and the pullout resistance was found to be greater than the values estimated by traditional methods.
ASSUNTO(S)
ensaios de arrancamento geogrelhas pull-out tests geogrids geosynthetics geossinteticos metodo dos elementos finitos monitoring monitoramento finite element method
