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Onset Condition for Liquefaction and Consequent Flow
1996Abstract In the preceding chapters, laboratory testing on reconstituted samples has been recognized as a useful tool for making the most conservative estimate of the residual strength of in situ sands. A similar argument may be developed as to the cyclic strength controlling the triggering of liquefaction. The relationship between the
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Flow liquefaction instability prediction using finite elements
Acta Geotechnica, 2014In this paper, a mathematical criterion based on bifurcation theory is developed to predict the onset of liquefaction instability in fully saturated porous media under static and dynamic loading conditions. The proposed liquefaction criterion is general and can be applied to any elastoplastic constitutive model. Since the liquefaction criterion is only
Mohammadnejad, Toktam +1 more
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Prediction of flow liquefaction instability of clean and silty sands
Acta Geotechnica, 2015Adding a small amount of non-plastic silt to clean sands may lead to dramatic loss of shear strength and a noteworthy tendency toward contraction when the mechanical behavior of the mixture is compared with that of the clean host sand. Thus, simulation of the behavior of silty sands with varying fines content is still a challenging subject in ...
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An Entropy Flow Optimization Technique for Helium Liquefaction Cycles
1984Several potential applications of superconducting technology require large size refrigerators/liquefiers for cooling. The capital cost of such large size refrigerators is small compared with the operating cost. Therefore there is an emphatic need for highly efficient refrigerators.
Moses Minta, Joseph L. Smith
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Kinetics of donor-vehicle coal liquefaction in a flow reactor
Fuel, 1979Abstract Development of the Exxon Donor Solvent process has necessitated studies to more clearly define the influence of liquefaction conditions on coal conversion. Process studies were conducted in a 22.7 kg/day (fifty-pound-per-day) integrated pilot plant. Illinois No.
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Advanced Modeling of Liquefaction-Induced Flow Failure
Geo-Congress 2022, 2022Saman Farzi Sizkow, Usama El Shamy
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A methodology to evaluate the susceptibility of soils for liquefaction flow failures
2018An important factor in evaluating the stability of hydraulic fills against flow sliding is the undrained steady state strength mobilized in the field. This paper proposes an empirical relationship between three factors: the undrained strength back-calculated from fills which failed by flow sliding, equivalent clean sand normalized blow count values and
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The flow of solids; or liquefaction by pressure
American Journal of Science, 1887openaire +1 more source