Motion and Stability of Saturated Soil Systems under Dynamic Loading.
Annual rept. 1 Feb 83-31 Jan 84,
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
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Various theoretical models were examined in the light of recent developments in the theories of interacting continua. Computer programs were developed to implement the popular engineering approach to liquefaction. Ghaboussis incompatible finite element model was compared with higher order elements to select the best model based on accuracy and economy. Numerical performance of special finite elements to model line singularities that occur at free draining loaded surfaces just after application of the load was documented. Biots theory of wave propagation in fluid-saturated media was implemented in a computer program following Ghaboussi and Wilsons procedures for linear elastic soils. The computer models were verified against available results in the literature on the subject and against theoretical solutions, for one-dimensional problems, based on Biots theory. Work was started on setting up laboratory experiments for verification of the theory. Necessary equipment and instrumentation was acquired. Author
- Soil Mechanics