1. Insight into the Seismic Liquefaction Performance of Shallow Foundations.
- Author
-
Karamitros, Dimitrios K., Bouckovalas, George D., and Chaloulos, Yannis K.
- Subjects
- *
SOIL liquefaction , *SEISMOLOGY , *GEOSYNTHETIC clay liners , *BUILDING foundations , *NONLINEAR dynamical systems - Abstract
The mechanisms that control the seismic liquefaction performance of shallow foundations are identified for the special, still common case of a clay crust separating the foundation from the liquefied ground. For that purpose, foundation response is first analyzed with the nonlinear dynamic finite-difference method and consequently evaluated in connection with published field and experimental evidence. Insight is given into the excess pore-pressure buildup under the foundation, the seismic settlement accumulation, the static-bearing capacity degradation, and the inertia-induced interaction with the superstructure. It is thus shown that a naturally or artificially created nonliquefiable soil crust may effectively mitigate the detrimental effects of liquefaction and allow for a performance-based design of surface foundations, without additional improvement measures. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF