Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading Ii
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Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading Ii
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Author : Tetsuo Tobita
language : en
Publisher: Springer Nature
Release Date :
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading Ii written by Tetsuo Tobita and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading
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Author : Bruce L. Kutter
language : en
Publisher: Springer Nature
Release Date : 2019-01-01
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading written by Bruce L. Kutter and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-01 with Electronic books categories.
This open access book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2017. It addresses the repeatability, variability, and sensitivity of lateral spreading observed in twenty-four centrifuge model tests on mildly sloping liquefiable sand. The centrifuge tests were conducted at nine different centrifuge facilities around the world. For the first time, a sufficient number of experiments were conducted to enable assessment of variability of centrifuge test results. The experimental data provided a unique basis for assessing the capabilities of twelve different simulation platforms for numerical simulation of soil liquefaction. The results of the experiments and the numerical simulations are presented and discussed in papers submitted by the project participants. The work presented in this book was followed by LEAP-Asia that included assessment of a generalized scaling law and culminated in a workshop in Osaka, Japan in March 2019. LEAP-2020, ongoing at the time of printing, is addressing the validation of soil-structure interaction analyses of retaining walls involving a liquefiable soil. A workshop is planned at RPI, USA in 2020. .
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading Ii
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Author : Tetsuo Tobita
language : en
Publisher: Springer
Release Date : 2024-02-04
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading Ii written by Tetsuo Tobita and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-04 with Science categories.
This open access book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2019 (LEAP-ASIA-2019) following the LEAP-UCD-2017 whose results have been published as a first volume. In addition to the research targets set in the previous one, such as the repeatability, variability, and sensitivity of lateral spreading on mildly sloping liquefiable sand, this volume includes research efforts to validate the generalized scaling law (hereafter “GSL”) for the identical prototype with the one employed in UCD-2017. In LEAP-ASIA-2019, 10 institutes around the world conducted 23 tests in total. It was the first multi-institutional attempts to investigate the validity of the generalized scaling law for the saturated sandy sloping deposit with wide range of initial conditions. The experimental data provided a unique basis for assessing the capabilities of six different simulation platforms for numerical simulation of soil liquefaction. The results of the experiments and the numerical simulations are presented and discussed in papers submitted by the project participants.
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading
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Author : Mourad Zeghal
language : en
Publisher:
Release Date : 2020-10-09
Model Tests And Numerical Simulations Of Liquefaction And Lateral Spreading written by Mourad Zeghal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-09 with Science categories.
This open access book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2017. It addresses the repeatability, variability, and sensitivity of lateral spreading observed in twenty-four centrifuge model tests on mildly sloping liquefiable sand. The centrifuge tests were conducted at nine different centrifuge facilities around the world. For the first time, a sufficient number of experiments were conducted to enable assessment of variability of centrifuge test results. The experimental data provided a unique basis for assessing the capabilities of twelve different simulation platforms for numerical simulation of soil liquefaction. The results of the experiments and the numerical simulations are presented and discussed in papers submitted by the project participants. The work presented in this book was followed by LEAP-Asia that included assessment of a generalized scaling law and culminated in a workshop in Osaka, Japan in March 2019. LEAP-2020, ongoing at the time of printing, is addressing the validation of soil-structure interaction analyses of retaining walls involving a liquefiable soil. A workshop is planned at RPI, USA in 2020. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Single Piles In Liquefiable Ground
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Author : Rui Wang
language : en
Publisher: Springer
Release Date : 2016-03-17
Single Piles In Liquefiable Ground written by Rui Wang and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-17 with Science categories.
This thesis focuses on the seismic response of piles in liquefiable ground. It describes the design of a three-dimensional, unified plasticity model for large post-liquefaction shear deformation of sand, formulated and implemented for parallel computing. It also presents a three-dimensional, dynamic finite element analysis method for piles in liquefiable ground, developed on the basis of this model,. Employing a combination of case analysis, centrifuge shaking table experiments and numerical simulations using the proposed methods, it demonstrates the seismic response patterns of single piles in liquefiable ground. These include basic force-resistance mode, kinematic and inertial interaction coupling mechanism and major influence factors. It also discusses a beam on the nonlinear Winkler foundation (BNWF) solution and a modified neutral plane solution developed and validated using centrifuge experiments for piles in consolidating and reconsolidating ground. Lastly, it studies axial pile force and settlement during post-earthquake reconsolidation, showing pile axial force to be irrelevant in the reconsolidation process, while settlement is process dependent.
Proceedings Of The 4th International Conference On Performance Based Design In Earthquake Geotechnical Engineering Beijing 2022
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Author : Lanmin Wang
language : en
Publisher: Springer Nature
Release Date : 2022-09-19
Proceedings Of The 4th International Conference On Performance Based Design In Earthquake Geotechnical Engineering Beijing 2022 written by Lanmin Wang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-19 with Science categories.
The 4th International Conference on Performance-based Design in Earthquake Geotechnical Engineering (PBD-IV) is held in Beijing, China. The PBD-IV Conference is organized under the auspices of the International Society of Soil Mechanics and Geotechnical Engineering - Technical Committee TC203 on Earthquake Geotechnical Engineering and Associated Problems (ISSMGE-TC203). The PBD-I, PBD-II, and PBD-III events in Japan (2009), Italy (2012), and Canada (2017) respectively, were highly successful events for the international earthquake geotechnical engineering community. The PBD events have been excellent companions to the International Conference on Earthquake Geotechnical Engineering (ICEGE) series that TC203 has held in Japan (1995), Portugal (1999), USA (2004), Greece (2007), Chile (2011), New Zealand (2015), and Italy (2019). The goal of PBD-IV is to provide an open forum for delegates to interact with their international colleagues and advance performance-based design research and practices for earthquake geotechnical engineering.
Challenges And Innovations In Geomechanics
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Author : Marco Barla
language : en
Publisher: Springer Nature
Release Date : 2021-01-14
Challenges And Innovations In Geomechanics written by Marco Barla and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-14 with Science categories.
This book gathers the latest advances, innovations, and applications in the field of computational geomechanics, as presented by international researchers and engineers at the 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG 2020/21). Contributions include a wide range of topics in geomechanics such as: monitoring and remote sensing, multiphase modelling, reliability and risk analysis, surface structures, deep structures, dams and earth structures, coastal engineering, mining engineering, earthquake and dynamics, soil-atmosphere interaction, ice mechanics, landfills and waste disposal, gas and petroleum engineering, geothermal energy, offshore technology, energy geostructures, geomechanical numerical models and computational rail geotechnics.
Implementation Verification Validation And Application Of Two Constitutive Models For Earthquake Engineering Applications
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Author : Long Chen
language : en
Publisher:
Release Date : 2020
Implementation Verification Validation And Application Of Two Constitutive Models For Earthquake Engineering Applications written by Long Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Human and economic losses caused by earthquake-induced soil liquefaction underscore the importance of assessing liquefaction hazards, both by determining whether a soil is likely to liquefy and by estimating consequences that these events may cause. Numerical simulations have proven to be useful for these purposes. Reliable numerical analysis requires constitutive models to represent the in-situ soil behavior as well as general loading and drainage conditions. In this context, the main objective of this research is to implement, verify, and validate two newly developed constitutive models, PM4Sand and PM4Silt (Boulanger and Ziotopoulou, 2017, 2018), in the finite element platform OpenSees (OpenSees, 2007). These models are developed for earthquake engineering applications and can achieve reasonable approximations of desired behavior including pore pressure generation and dissipation, limiting strains, and cyclic mobility with straightforward calibration process. The verification study compares the response of the same model implemented in three different frameworks, OpenSees, FLAC, and PLAXIS, using stress point, element model, and 1D analyses. The validation study demonstrates the models0́9 capability in capturing realistic soil behavior under different scenarios including case-histories and a large-scale shake table test. For further validation of PM4Sand, the second part of this dissertation concentrates on the contribution of the UW numerical simulation team to three recent LEAP workshops that have focused on validating constitutive models using high quality laboratory and centrifuge experiments. The simulated models include a constant slope subject to lateral spreading and a sheet pile retaining structure supporting liquefiable soils. Lastly, this dissertation addresses two case studies using PM4Sand and PM4Silt to shed light on their application for analyzing lateral spreading induced by liquefaction. The first case focuses on a typical highway bridge embankment and investigates the efficiency of different intensity measures for estimating lateral displacement. The second case focuses on a real case study that showed zero-displacement lateral spreading during a recent earthquake event due, possibly, to interbedded sand, silt, and clay deposits.
State Of The Art And Practice In The Assessment Of Earthquake Induced Soil Liquefaction And Its Consequences
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher:
Release Date : 2019-01-30
State Of The Art And Practice In The Assessment Of Earthquake Induced Soil Liquefaction And Its Consequences written by National Academies of Sciences, Engineering, and Medicine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-30 with categories.
Earthquake-induced soil liquefaction (liquefaction) is a leading cause of earthquake damage worldwide. Liquefaction is often described in the literature as the phenomena of seismic generation of excess porewater pressures and consequent softening of granular soils. Many regions in the United States have been witness to liquefaction and its consequences, not just those in the west that people associate with earthquake hazards. Past damage and destruction caused by liquefaction underline the importance of accurate assessments of where liquefaction is likely and of what the consequences of liquefaction may be. Such assessments are needed to protect life and safety and to mitigate economic, environmental, and societal impacts of liquefaction in a cost-effective manner. Assessment methods exist, but methods to assess the potential for liquefaction triggering are more mature than are those to predict liquefaction consequences, and the earthquake engineering community wrestles with the differences among the various assessment methods for both liquefaction triggering and consequences. State of the Art and Practice in the Assessment of Earthquake-Induced Soil Liquefaction and Its Consequences evaluates these various methods, focusing on those developed within the past 20 years, and recommends strategies to minimize uncertainties in the short term and to develop improved methods to assess liquefaction and its consequences in the long term. This report represents a first attempt within the geotechnical earthquake engineering community to consider, in such a manner, the various methods to assess liquefaction consequences.
Earthquake Geotechnical Engineering For Protection And Development Of Environment And Constructions
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Author : Francesco Silvestri
language : en
Publisher: CRC Press
Release Date : 2019-07-19
Earthquake Geotechnical Engineering For Protection And Development Of Environment And Constructions written by Francesco Silvestri and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-19 with Technology & Engineering categories.
Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions contains invited, keynote and theme lectures and regular papers presented at the 7th International Conference on Earthquake Geotechnical Engineering (Rome, Italy, 17-20 June 2019. The contributions deal with recent developments and advancements as well as case histories, field monitoring, experimental characterization, physical and analytical modelling, and applications related to the variety of environmental phenomena induced by earthquakes in soils and their effects on engineered systems interacting with them. The book is divided in the sections below: Invited papers Keynote papers Theme lectures Special Session on Large Scale Testing Special Session on Liquefact Projects Special Session on Lessons learned from recent earthquakes Special Session on the Central Italy earthquake Regular papers Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions provides a significant up-to-date collection of recent experiences and developments, and aims at engineers, geologists and seismologists, consultants, public and private contractors, local national and international authorities, and to all those involved in research and practice related to Earthquake Geotechnical Engineering.