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Liquefaction mitigation using secant piles wall under a large water tank
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 64m 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 20m-long, 1m-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.
Highlights 2D and 3D FE models were developed to evaluate a liquefaction mitigation strategy. The seismic response was evaluated in terms of the differential settlements. The mitigation strategy tends to uniform the settlements under the tank. The results from the 3D analyses confirm the ones obtained with the 2D approach.
Liquefaction mitigation using secant piles wall under a large water tank
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 64m 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 20m-long, 1m-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.
Highlights 2D and 3D FE models were developed to evaluate a liquefaction mitigation strategy. The seismic response was evaluated in terms of the differential settlements. The mitigation strategy tends to uniform the settlements under the tank. The results from the 3D analyses confirm the ones obtained with the 2D approach.
Liquefaction mitigation using secant piles wall under a large water tank
Sáez, E. (author) / Ledezma, C. (author)
Soil Dynamics and Earthquake Engineering ; 79 ; 415-428
2015-06-22
14 pages
Article (Journal)
Electronic Resource
English
Liquefaction mitigation using secant piles wall under a large water tank
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