TY - GEN
T1 - Measurement of small-strain modulus of gravelly soils using oedometer equipped with piezoelectric sensors
AU - Zeng, X.
AU - Tammineni, V.
PY - 2006
Y1 - 2006
N2 - Small-strain modulus of soils is a very important parameter in geotechnical engineering. However, complexities in performing conventional tests and the high cost of testing system have prevented it from becoming a routine test for gravelly soils commonly used in pavement construction. Therefore, development of an alternative, simple and reliable testing technique is essential to the application of the mechanistic design for a flexible pavement system. In this paper, a technique has been developed using a large oedometer equipped with piezoelectric sensors. Elastic moduli and Poisson's ratio of gravelly soils were determined under cyclic loading conditions, for three soil specimens with varying percentage of gravel. It is found that there is considerable variation in the modulus values with different gravel contents. The influence of confining pressure and number of stress cycles is investigated. The experimental results are compared with several empirical formulae widely used to estimate the elastic modulus of gravel and sand. Copyright ASCE 2006.
AB - Small-strain modulus of soils is a very important parameter in geotechnical engineering. However, complexities in performing conventional tests and the high cost of testing system have prevented it from becoming a routine test for gravelly soils commonly used in pavement construction. Therefore, development of an alternative, simple and reliable testing technique is essential to the application of the mechanistic design for a flexible pavement system. In this paper, a technique has been developed using a large oedometer equipped with piezoelectric sensors. Elastic moduli and Poisson's ratio of gravelly soils were determined under cyclic loading conditions, for three soil specimens with varying percentage of gravel. It is found that there is considerable variation in the modulus values with different gravel contents. The influence of confining pressure and number of stress cycles is investigated. The experimental results are compared with several empirical formulae widely used to estimate the elastic modulus of gravel and sand. Copyright ASCE 2006.
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U2 - 10.1061/40866(198)30
DO - 10.1061/40866(198)30
M3 - Conference contribution
AN - SCOPUS:33845421933
SN - 0784408661
SN - 9780784408667
T3 - Geotechnical Special Publication
SP - 239
EP - 246
BT - Pavement Mechanics and Performance
T2 - Pavement Mechanics and Performance
Y2 - 6 June 2006 through 8 June 2006
ER -