Regression and trend analysis of LEAP 2020 experimental results

Mourad Zeghal; Alejandro Sepulveda; Majid T. Manzari; Bruce Kutter; Tarek Abdoun; Stuart K. Haigh; Wen Yi Hung; Evangelia Korre; Gopal S.P. Madabhushi; Satish Manandhar; Mitsu Okamura; Kyohei Ueda; Yan Guo Zhou

doi:10.1016/j.soildyn.2024.108755

Regression and trend analysis of LEAP 2020 experimental results

Mourad Zeghal, Alejandro Sepulveda, Majid T. Manzari, Bruce Kutter, Tarek Abdoun, Stuart K. Haigh, Wen Yi Hung, Evangelia Korre, Gopal S.P. Madabhushi, Satish Manandhar, Mitsu Okamura, Kyohei Ueda, Yan Guo Zhou

Civil Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The LEAP-2020 comprised a series of 23 centrifuge experiments of a saturated Ottawa sand (backfill) deposit supported by a cantilever wall. The experiments covered a comprehensive range of experimental conditions. The deposits had a relative density that varied from 49% to 76% and the centrifuge models were subjected to input motions that varied in amplitude and frequency content. The experimental results were consequently marked by a broad spectrum of response characteristics. A Gaussian Process Regression (GPR) was employed to investigate and assess the trends and response mechanisms of permanent lateral displacements, settlements, wall rotation and pore pressure buildups of the tested soil-retaining wall systems. The analyses showed a high level of consistency among the experimental results and shed light on a number of salient response characteristics.

Original language	English (US)
Article number	108755
Journal	Soil Dynamics and Earthquake Engineering
Volume	183
DOIs	https://doi.org/10.1016/j.soildyn.2024.108755
State	Published - Aug 2024

Keywords

Centrifuge experiment
Dynamic response
Gaussian process regression
Lateral displacement
Liquefaction
Response surface
Settlement
Soil-retaining wall

ASJC Scopus subject areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology
Soil Science

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10.1016/j.soildyn.2024.108755

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title = "Regression and trend analysis of LEAP 2020 experimental results",

abstract = "The LEAP-2020 comprised a series of 23 centrifuge experiments of a saturated Ottawa sand (backfill) deposit supported by a cantilever wall. The experiments covered a comprehensive range of experimental conditions. The deposits had a relative density that varied from 49% to 76% and the centrifuge models were subjected to input motions that varied in amplitude and frequency content. The experimental results were consequently marked by a broad spectrum of response characteristics. A Gaussian Process Regression (GPR) was employed to investigate and assess the trends and response mechanisms of permanent lateral displacements, settlements, wall rotation and pore pressure buildups of the tested soil-retaining wall systems. The analyses showed a high level of consistency among the experimental results and shed light on a number of salient response characteristics.",

keywords = "Centrifuge experiment, Dynamic response, Gaussian process regression, Lateral displacement, Liquefaction, Response surface, Settlement, Soil-retaining wall",

author = "Mourad Zeghal and Alejandro Sepulveda and Manzari, {Majid T.} and Bruce Kutter and Tarek Abdoun and Haigh, {Stuart K.} and Hung, {Wen Yi} and Evangelia Korre and Madabhushi, {Gopal S.P.} and Satish Manandhar and Mitsu Okamura and Kyohei Ueda and Zhou, {Yan Guo}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = aug,

doi = "10.1016/j.soildyn.2024.108755",

language = "English (US)",

volume = "183",

journal = "Soil Dynamics and Earthquake Engineering",

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T1 - Regression and trend analysis of LEAP 2020 experimental results

AU - Zeghal, Mourad

AU - Sepulveda, Alejandro

AU - Manzari, Majid T.

AU - Kutter, Bruce

AU - Abdoun, Tarek

AU - Haigh, Stuart K.

AU - Hung, Wen Yi

AU - Korre, Evangelia

AU - Madabhushi, Gopal S.P.

AU - Manandhar, Satish

AU - Okamura, Mitsu

AU - Ueda, Kyohei

AU - Zhou, Yan Guo

PY - 2024/8

Y1 - 2024/8

N2 - The LEAP-2020 comprised a series of 23 centrifuge experiments of a saturated Ottawa sand (backfill) deposit supported by a cantilever wall. The experiments covered a comprehensive range of experimental conditions. The deposits had a relative density that varied from 49% to 76% and the centrifuge models were subjected to input motions that varied in amplitude and frequency content. The experimental results were consequently marked by a broad spectrum of response characteristics. A Gaussian Process Regression (GPR) was employed to investigate and assess the trends and response mechanisms of permanent lateral displacements, settlements, wall rotation and pore pressure buildups of the tested soil-retaining wall systems. The analyses showed a high level of consistency among the experimental results and shed light on a number of salient response characteristics.

AB - The LEAP-2020 comprised a series of 23 centrifuge experiments of a saturated Ottawa sand (backfill) deposit supported by a cantilever wall. The experiments covered a comprehensive range of experimental conditions. The deposits had a relative density that varied from 49% to 76% and the centrifuge models were subjected to input motions that varied in amplitude and frequency content. The experimental results were consequently marked by a broad spectrum of response characteristics. A Gaussian Process Regression (GPR) was employed to investigate and assess the trends and response mechanisms of permanent lateral displacements, settlements, wall rotation and pore pressure buildups of the tested soil-retaining wall systems. The analyses showed a high level of consistency among the experimental results and shed light on a number of salient response characteristics.

KW - Centrifuge experiment

KW - Dynamic response

KW - Gaussian process regression

KW - Lateral displacement

KW - Liquefaction

KW - Response surface

KW - Settlement

KW - Soil-retaining wall

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DO - 10.1016/j.soildyn.2024.108755

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SN - 0267-7261

VL - 183

JO - Soil Dynamics and Earthquake Engineering

JF - Soil Dynamics and Earthquake Engineering

M1 - 108755

ER -

Regression and trend analysis of LEAP 2020 experimental results

Abstract

Keywords

ASJC Scopus subject areas

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