Procedure for obtaining frozen core samples from a liquefied Crystal Silica Sand model (Experiment 4, geomembrane confining layer on Ottawa F60 model)

The purpose of the test was to develop a procedure to obtain frozen core samples from liquefied Ottawa F60 sand that had a geomembrane placed as a confining layer. The Ottawa F60 sand model with the geomembrane layer was spun up to 30 g's and shaken three times, two sinusoidal motions and a third strong shake. Due to equipment problems, the exact motions applied are not known. However the accelerations in the model were acquired and can be analyzed, but for the purpose of this project it was not needed. Visual confirmation of liquefaction was present in the form of a sand boil. Frozen core samples were taken from the test.