Mourad Zeghal

Rensselaer Polytechnic Institute

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Tarek Abdoun

Rensselaer Polytechnic Institute

Ahmed Elgamal

UC San Diego Health System

Bruce L. Kutter

University of California, Davis

Majid T. Manzari

George Washington University

Usama El Shamy

Southern Methodist University

Victoria Bennett

Rensselaer Polytechnic Institute

Kyohei Ueda

Prevention Institute

Tetsuo Tobita

Kansai University

Spg Madabhushi

University of Cambridge

Stuart K. Haigh

University of Cambridge

Cooperative Institutions

Rensselaer Polytechnic Institute

University of California, Davis

ORCID

Zhejiang University

Kyoto University

University of California, San Diego

Korea Advanced Institute of Science and Technology

University at Buffalo, State University of New York

University of British Columbia

Tokyo Institute of Technology

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Bender elements and system identification for estimation of V_s

International Journal of Physical Modelling in Geotechnics (2013)

Waleed El-Sekelly Vicente Mercado Tarek Abdoun Mourad Zeghal Hesham El-Ganainy

Accurate estimation of shear wave velocity is necessary in most geotechnical earthquake engineering applications. This paper details two different methodologies implemented for the estimation of the shear wave velocity profile of soil deposits. The first implemented method employs bender elements, whereas the second relies on a system identification technique and the use of acceleration recordings. In order to compare the two techniques, two centrifuge experiments were conducted using saturated Ottawa F#55 sand in a one-dimensional laminar container. The sand was deposited at void ratios 0·723 and 0·625, respectively. Shear wave velocity profiles obtained using both techniques were compared. These profiles were also compared to those documented in the literature. The results agree well with each other and with the values from the literature. The matching results support the validity of using both methods as a means of estimating the shear wave velocities in centrifuge models as well as in full-scale testing.

Centrifuge

Wave velocity

Void ratio

Shear velocity

10.1680/ijpmg.13.00004

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Citations (20)

Effects of fabric on stiffness properties and liquefaction of granular soils

CRC Press eBooks (2014)

Mourad Zeghal Chrysovalantis Tsigginos

10.1201/b17435-279

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Citations (0)

Variability Quantification of LEAP 2017 Experiments

Geo-Risk 2017 (2023)

N K Goswami Mourad Zeghal

10.1061/9780784484968.027

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Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading: LEAP-UCD-2017

Bruce L. Kutter Majid T. Manzari Mourad Zeghal

Source

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Citations (41)

Proposed outline for LEAP verification and validation processes

CRC Press eBooks (2014)

Bruce L. Kutter M Manzari Mourad Zeghal Yang Zhou Richard J. Armstrong

10.1201/b17438-13

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Citations (19)

Report on recent trends in granular mechanics

Mustafa Alsaleh Ching S. Chan Ali Daouadji Usama El Shamy Mahdia Hattab

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SITE LIQUEFACTION AND REMEDIATION

Mourad Zeghal Korhan Adalier A-W.M. Elgamal

Two free-field downhole array seismic records are now available to document the underlying site liquefaction response mechanisms. Records of acceleration and pore pressure at the Wildlife Refuge (Imperial County, California, USA) reflected liquefaction during the 1987 Superstition Hills earthquake. In 1995, liquefaction at Port Island (Kobe, Japan) was documented by a four accelerometer downhole array during the Hyogoken-Nanbu earthquake. Using these records, the associated shear stress-strain response is identified and employed as a guideline for development of liquefaction countermeasure techniques. A number of these techniques (densification, drainage techniques, solidification methods, and inclusions) are discussed in view of the identified response mechanisms.

Soil liquefaction

Response analysis

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Difference and Sensitivity Analyses of the LEAP-2017 Experiments

Springer eBooks (2019)

N K Goswami Mourad Zeghal Bruce L. Kutter Majid T. Manzari Tarek Abdoun

Centrifuge

Penetration (warfare)

10.1007/978-3-030-22818-7_7

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Advances in Measurement and Modeling of Soil Behavior

Geo-Denver 2000 (2007)

Don J. DeGroot C. Vipulanandan Jerry A. Yamamuro Victor N. Kaliakin Poul V. Lade

Proceedings of Geo-Denver 2007, New Peaks in Geotechnics, held in Denver, Colorado, February 18-21, 2007. Sponsored by the Geo-Institute of ASCE. This Geotechnical Special Publication contains 38 papers that describe recent advances in the measurement and modeling of soil behavior. New methodologies for laboratory and in situ testing of soil properties are presented together with advances in modeling of measured soil behavior. The papers cover a broad spectrum of soils from granular materials to soft clays. A special feature of this collection of papers is that results are presented from work on the behavior and modeling of soils at the macro, micro and nano scales.

Geotechnics

10.1061/9780784409176

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Citations (19)

Liquefaction experiment and analysis projects (LEAP): Summary of observations from the planning phase

Soil Dynamics and Earthquake Engineering (2017)

Majid T. Manzari Mohamed El Ghoraiby Bruce L. Kutter Mourad Zeghal Tarek Abdoun

Centrifuge

Collaboratory

Base (topology)

10.1016/j.soildyn.2017.05.015

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Citations (72)