Parâmetros geotécnicos e previsão da capacidade de carga de estacas apiloadas em solo tropical arenoso obtidos com o Pressiômetro Ménard
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Data
2005-01-01
Autores
Cavalcante, Erinaldo Hilário
Giacheti, Heraldo Luiz [UNESP]
Bezerra, Raimundo Leidimar
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Resumo
This paper presents and discusses Ménard Pressuremeter test results used to predict bearing capacity of pounded piles installed in a tropical sandy soil. Fifteen pre-bored pressuremeter tests were carried out at the Experimental Research Site from Unesp - Bauru up to 15 m depth, one test per meter. Several laboratory and in situ tests were carried out in this research site as well as load tests on plates and on piles. Pressuremeter test results were firstly analyzed to determine geotechnical soil parameters based on empirical methods, emphasizing the estimative of the earth pressure coefficient at rest (K0). After that, bearing capacity prediction of pounded piles with 4 m, 7 m and 10 m were made and compared with test results from instrumented load tests. Pressuremeter test results allowed a very good estimative of bearing capacity for the pile with 4 m length and underestimated in 25,7% and 20,0% the bearing capacity for the pile with 7 and 10 m length, respectively. The back analysis of the test results suggests that the appropriate value for the bearing capacity factor for the tested soil-pile system on this soil is equal to 2.
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Bearing capacity, In situ testing, Piles, PMT, Tropical soils, Geotechnical engineering, Load testing, Plates (structural components), Pressure measurement, Sand, Soils, Geotechnical parameters, Pounded piles, Pressuremeter testing, Tropical sandy soil
Como citar
Solos e Rochas, v. 28, n. 1, p. 115-129, 2005.