Liquefaction mitigation using secant piles wall under a large water tank |
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| Institution: | 1. Department of Structural and Geotechnical Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile;2. National Research Center for Integrated Natural Disaster Management CONICYT/FONDAP/15110017, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile;1. Bio-Computing Research Center, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, China;2. Key Laboratory of Network Oriented Intelligent Computation, Shenzhen, China;3. Shenzhen Sunwin Intelligent Corporation, Shenzhen, China;4. Biometrics Researcher Centre, Department of Computing, The Hong Kong Polytechnic University, Hong Kong, China;5. Engineering Laboratory on Intelligent Perception for Internet of Things, Shenzhen Graduate School, Peking University, Shenzhen, China;1. International Institute of Earthquake Engineering and Seismology, Iran;2. University of Dundee, UK;1. Department of Civil and Environmental Engineering, Washington State University, Box 642910, Pullman 99164-2910, WA, United States;2. Department of Civil and Environmental Engineering, University of Washington, Box 352700, Seattle 98195-2700, WA, United States;1. Department of Civil and Environmental Engineering, University of Florence, Via S. Marta 3, Florence 50139, Italy;2. Department of Civil Engineering and Architecture, University of Udine, Via delle Scienze 206, Udine 33100, Italy |
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| 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. |
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| Keywords: | Liquefaction Secant piles wall Water tank |
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