Change of soil permeability during and after soil liquefaction
Change of soil permeability during and after soil liquefaction
In addition to the direct casualties caused by earthquakes, soil liquefaction induced by earthquakes can also lead to subsequent damage. Therefore, it is necessary to have a better understanding of soil liquefaction. Although previous studies have reported an increase in soil permeability during soil liquefaction, the rates of increase suggested by different scholars vary. As a result, this study conducts a series of shaking table liquefaction tests on loose to medium sand to further investigate this issue. The porewater pressure and settlement history are monitored, and the permeability history before, during, and after liquefaction is back-calculated based on the consolidation theory. The results show that the permeability during and after liquefaction is approximately 1.2 and 0.9 times the original value, respectively.
M. C. Chu; Chi-Chin Tsai; Y. C. Kao; Y. X. Liu; C. Y. Jou
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
B - Geohazards
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