Numerical Modeling of an L-Shaped very Stiff Concrete Retaining Wall.

Document Type : Research Studies

Authors

1 Professor of Structural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

2 Assistant Professor of Shiefield University., U.K

3 Assistant Professor., Structural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Abstract

A numerical model incorporated in finite element PLAXIS program is presented in this paper to simulate the behavior of an "L-shaped" very stiff reinforced concrete prototype wall. The proposed numerical model has been calibrated and validated experimental results conducted previously at Manchester University. Taking into account the centrifuge model dimensions and geometry with respect to the centrifuge scaling law, the loading conditions and sequences during the test, and by considering for the modeling of the soil the hardening soil model, the numerical results obtained in terms of pattern and magnitude of the wall displacements were very close to the experimentally measured results at prototype scale. A good agreement was also obtained between the measured and the uncritically computed lateral pressures acting on the wall, in comparison to the classical approach based on the Ko procedure or the Rankine active pressure.

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