LEAP-2017: Comparison of the Type-B Numerical Simulations with Centrifuge Test Results

Manzari, Majid T.; Ghoraiby, Mohamed El; Zeghal, Mourad; Kutter, Bruce L.; Arduino, Pedro; Barrero, Andrés R.; Bilotta, Emilio; Chen, Long; Chen, Renren; Chiaradonna, Anna; Elgamal, Ahmed; Fasano, Gianluca; Fukutake, Kiyoshi; Fuentes, William; Ghofrani, Alborz; Haigh, Stuart; Hung, Wen Yi; Ichii, Koji; Kim, Dong Soo; Kiriyama, Takatoshi; Lascarro, Carlos; Madabhushi, Spg; Mercado, Vicente; Montgomery, Jack; Okamura, Mitsu; Ozutsumi, Osamu; Qiu, Zhijian; Taiebat, Mahdi; Tobita, Tetsuo; Travasarou, Thaleia; Tsiaousi, Dimitra; Ueda, Kyohei; Ugalde, Jose; Wada, Toma; Wang, Rui; Yang, Ming; Zhang, Jianmin; Zhou, Yan‐Guo; Ziotopoulou, Katerina

doi:10.1007/978-3-030-22818-7_10

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…The key attributes of the DM04 formulation include the integration of a narrow conical yield surface, rotational (kinematic) hardening law, bounding surface, and dilatancy surface. These characteristics facilitate the simulation of the nonlinear mechanical behavior of granular soils subjected to both monotonic and cyclic loading conditions [30,31]. The general constitutive equation reads:…”

Section: Dafalias-manzari 2004 (Dm04) Modelmentioning

confidence: 99%

Simulation of soil-structure interaction of integral abutment bridges using advanced constitutive relations

Hassan,

Liyanapathirana,

Fuentes

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Integral bridges have been proposed as an attractive design concept that negate the requirements for expansion joints. However, owing to structural continuity, seasonal and diurnal thermal fluctuations have subjected the abutments to long-term cyclic interaction with approach backfills. This resulted in two notable geotechnical complications: ratcheting of lateral stresses and progressive soil deformation. To understand these phenomena, considerable research has been conducted using numerical methods. Here, either Winkler springs or simple constitutive relations, such as the Mohr-Coulomb model, are predominantly utilized. However, the former is based on monotonic displacement-dependent stiffness theories, and the latter is constrained by the limitations of the traditional yield surface plasticity. Hence, neither possesses the capability to simulate the hysteretic response, which is a characteristic of integral bridge approaches. Therefore, this study aims to present the advantages of using advanced constitutive relations to predict the long-term behavior of integral bridge approach backfills. First, using a lateral cyclic triaxial simulation, the significance of soil densification was highlighted by comparing the performance of the Mohr-Coulomb model with that of the bounding surface Dafalias-Manzari-2004 model. Subsequently, further comparisons were performed with the centrifuge model data of the integral abutment. At both the element and boundary value levels, the Mohr-Coulomb model could not capture the gradual accumulation of the lateral stresses. Conversely, the Dafalias-Manzari-2004 model can estimate the long-term passive pressure accumulation along the height of the abutment.

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Section: Dafalias-manzari 2004 (Dm04) Modelmentioning

confidence: 99%

Simulation of soil-structure interaction of integral abutment bridges using advanced constitutive relations

Hassan,

Liyanapathirana,

Fuentes

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…It was found that SANISAND model is capable of simulating the pore pressure generation in the free-field as observed in a recent centrifuge test. Recently, Manzari et al [141] compered 11 sets of Type-B numerical simulations with the results of a selected set of centrifuge tests conducted in the LEAP-2017 project. They obtained a good match trends in a number of numerical simulations with their experimental results.…”

Section: Two-and Three-dimensional Numerical Modellingmentioning

confidence: 99%

The Dynamic Behaviour of Pile Foundations in Seismically Liquefiable Soils: Failure Mechanisms, Analysis, Re-Qualification

Rostami¹,

Hytiris²,

Bhattacharya³

2021

Earthquakes - From Tectonics to Buildings

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This chapter presents a concise overview of the mechanics of failure, analysis and requalification procedures of pile foundations in liquefiable soils during earthquakes. The aim is to build a strong conceptual and technical interpretation in order to gain insight into the mechanisms governing the failure of structures in liquefaction and specify effective requalification techniques. In this regard, several most common failure mechanisms of piles during seismic liquefaction such as bending (flexural), buckling instability and dynamic failure of the pile are introduced. Furthermore, the dynamic response commentary is provided by critically reviewing experimental investigations carried out using a shaking table and centrifuge modelling procedures. The emphasis is placed on delineating the concept of seismic design loads and important aspects of the dynamic behaviour of piles in liquefiable soils. In this context, using Winkler foundation approach with the proposed p–y curves and finite-element analyses in conjunction with numerical analysis methods, are outlined. Moreover, the feasibility of successful remediation techniques for earthquake resistance is briefly reviewed in light of the pile behaviour and failure. Finally, practical recommendations for achieving enhanced resistance of the seismic response of pile foundation in liquefiable soil are provided.

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“…Eight sets of simulations provided results for the sensitivity analysis for relative densities of 50%, 65%, and 75%. During the Type-B simulations described by Manzari et al (2019b), the simulations by 5a-F2-Pm respected the prescribed densities but mistakenly used ρ max and ρ min reported by a different source, resulting in lower relative densities.…”

Section: D Comparisons Of Experimental Regression Surfacesmentioning

confidence: 99%

“…The 4-parameter and 6-parameter regression surfaces described above are compared to the Type-B predictions (Manzari et al 2019b) along with the results of the numerical sensitivity study in Fig. 11.5.…”

Section: -D Comparison Of Simulations To Experimental Regression Surmentioning

confidence: 99%

Numerical Sensitivity Study Compared to Trend of Experiments for LEAP-UCD-2017

Kutter

Manzari

Zeghal

et al. 2019

Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading

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LEAP-2017: Comparison of the Type-B Numerical Simulations with Centrifuge Test Results

Cited by 6 publications

References 7 publications

Simulation of soil-structure interaction of integral abutment bridges using advanced constitutive relations

Simulation of soil-structure interaction of integral abutment bridges using advanced constitutive relations

The Dynamic Behaviour of Pile Foundations in Seismically Liquefiable Soils: Failure Mechanisms, Analysis, Re-Qualification

Numerical Sensitivity Study Compared to Trend of Experiments for LEAP-UCD-2017

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