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Study on liquefaction of saturated loess by in-situ explosion test
Wang Lanmin (王兰民), He Kaiming (何开明), Shi Yucheng (石玉成)
and Wang Jun (王峻)
- Lanzhou Institute of Seismology, China Seismological Bureau, Lanzhou
730000, China
- Department of Underground Engineering, Tongji University, Shanghai
200000,China
Abstract: Liquefaction testing at a saturated loess site was performed
under the simulated earthquake ground motion induced by artificial explosions
with micro-time intervals. The time histories of ground acceleration, pore water
pressure and the ultimate value of residual strain were recorded and measured.
The modified FEQdrain computation software was used to analyze the liquefaction.
Both the test and the analysis confirm the objective occurrence of loess
liquefaction. Furthermore, the reliability of the method of the loess
liquefaction analysis based on FEQdrain and the model of pore water pressure
development of saturated loess are examined.
Key words: loess; liquefaction; pore pressure; explosion test
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