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Erschienen in:
2020 | OriginalPaper | Buchkapitel
2D Coupled Poro-Elastic Analysis for Dynamic Behaviour of CPRF
verfasst von : Patchamatla J. RamaRaju, Pavan K. Emani, Shashank Kothari
Erschienen in: Advances in Computer Methods and Geomechanics
Verlag: Springer Singapore
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Abstract
In the present work, the dynamic behaviour of combined Piled Raft Foundation (CPRF) in liquefying soils is studied using numerical simulation techniques. Using OPENSEES, 2D poro-elastic modelling of the soil and the piled raft is carried out. The main focus is the pore pressure generation in the soil, caused by the harmonic excitations in horizontal direction on the raft. Due to impervious nature of the raft and piles, excess pore pressures are observed under the raft. This generation of excess pore water pressure can be critical, due to its adverse effects on stability, and this can be very catastrophic without provision of pore pressure relief in the raft. Besides, the poro-elastic horizontal dynamic impedances of CPRFs are reported.