ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 2

Prediction of Pore-Water Pressure Buildup During Undrained Resonant Column Testing of Virgin Sand Specimens

Chung, RM
Leader and senior research engineer, Geotechnical Engineering Group, Structures Division, Center for Building Technology, National Bureau of Standards, Washington, D.C.,

Yokel, FY
Leader and senior research engineer, Geotechnical Engineering Group, Structures Division, Center for Building Technology, National Bureau of Standards, Washington, D.C.,

Abstract

Prediction of pore-water pressure buildup of a saturated sand deposit subjected to dynamic load is important for dynamic stability analysis of the deposit. Empirical equations, proposed by Drnevich to correlate the predicted pore-water pressure buildup with that measured during undrained resonant column tests on saturated Ottawa silica sand, were used to predict the results of tests on virgin Monterey No. 0 sand specimens. It was found that, with a modification of the coefficient in the empirical equation, there is good correlation between predicted and measured excess pore-water pressures when a high degree of saturation (B ≥ 0.96) was achieved in the specimen preparation. The correlation is poor for specimens with a lower degree of saturation (B < 0.96).

Keywords:
pore-water pressures, sands, shear strain, reference strain, resonant column testing

Paper ID: GTJ10856J
DOI: 10.1520/GTJ10856J
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