Development of Pore Pressure and Shear Strain in Clean Hostun Sands Under Multi-directional Loading Paths
A series of undrained multi-directional direct simple shear tests with circular paths were conducted to investigate the excess pore pressure generation and shear strain development in clean Hostun sands under multi-directional loading condition. The results of an example test are shown. The excess pore pressure accumulation and shear strain development under multi-directional loading condition exhibits evidently different characteristics compared with that under uni-directional loading condition. Excess pore pressure accumulates generally with the circular stress path but can have increase and decrease within a single cycle as well.
KeywordsMulti-directional loading Excess pore pressure Liquefaction
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