Publicaciones

Liquefaction mitigation using secant piles wall under a large water tank

Journal

Soil Dynamics and Earthquake Engineering

Institución

Pontificia Universidad Católica de Chile

Disciplina

Ingeniería Civil

afiliacion

  1. E. Sáez, Department of Structural and Geotechnical Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile. National Research Center for Integrated Natural Disaster Management CONICYT/FONDAP/15110017, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
  2. C. Ledezma, Department of Structural and Geotechnical Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile. National Research Center for Integrated Natural Disaster Management CONICYT/FONDAP/15110017, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile

Abstract

Two-dimensional and three-dimensional numerical models were developed to evaluate the effectiveness of a foundation perimeter wall on the mitigation of the effects of liquefaction in a 64 m diameter, reinforced-concrete water tank. The seismic response of the tank was evaluated in terms of differential settlements induced by an actual earthquake recording by comparing the situations with and without a mitigation strategy consisting of 20 m-long, 1 m-diameter secant piles wall. Although the mitigation strategy did not significantly reduce the liquefaction-induced settlements, it enforced a relatively homogeneous distribution of these settlements, leading to less structural damage.

Keywords

Liquefaction, Secant piles wall, Water tank

Link

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