Abstract
Chemical injection is usually used as a measure to mitigate liquefaction of sandy ground under existed tanks. This paper uses two-dimensional ully coupled liquefaction analysis to investigate the mechanism of chemical njection to mitigate liquefaction of sandy ground under tanks. Numerical results were consistent with the results of dynamic centrifuge tests, including acceleration, excess pore water pressure, and settlement of improved sandy ground under tanks. Numerical results shows that the settlement of the sandy ground under tanks was significantly reduced mainly because the sandy ground improved by chemaical injection settled much smaller than unimproved sandy ground.
