Postliquefaction Behavior of Sandy Ground
Subsidence of level ground that remains after liquefaction is a consequence of consolidation. Subsidence is also possible to occur near the top of a liquefied slope as well as in a foundation of a building. They are, however, due to lateral soil displacement and is out of scope in this section.
Lee and Albaisa (1974) summarized laboratory test results to obtain Fig. 22.1 that enables to predict the volume contraction of sand subjected to cyclic undrained loading. It is shown that looser sands develops greater subsidence. Their study, however, is concerned with unliquefied sand in which the excess pore pressure is less than 100%.
KeywordsEffective Stress Shear Wave Velocity Excess Pore Excess Pore Pressure Ground Subsidence
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