Ahmed Elgamal
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View article: Validation and Detection of Some New Rice Hybrids to Salt Stress Using Various Statistical Analysis Methods
Validation and Detection of Some New Rice Hybrids to Salt Stress Using Various Statistical Analysis Methods Open
View article: Experimentally-calibrated numerical investigation of soil stiffness, permeability, bucket size, and damping effects on seismic response of offshore wind turbine foundations
Experimentally-calibrated numerical investigation of soil stiffness, permeability, bucket size, and damping effects on seismic response of offshore wind turbine foundations Open
View article: LEAP-ASIA-2019 Simulation Exercise: Calibration of Constitutive Models and Simulations of the Element Tests
LEAP-ASIA-2019 Simulation Exercise: Calibration of Constitutive Models and Simulations of the Element Tests Open
This chapter presents a summary of the calibration exercises (i.e., element test simulations) submitted by nine numerical simulation teams that participated in the LEAP-ASIA-2019 prediction campaign. The standard sand selected for the camp…
View article: LEAP-ASIA-2019 Simulation Exercise: Comparison of the Type-B and Type-C Numerical Simulations with Centrifuge Test Results
LEAP-ASIA-2019 Simulation Exercise: Comparison of the Type-B and Type-C Numerical Simulations with Centrifuge Test Results Open
This chapter presents a summary of Type-B and Type-C numerical simulations submitted by nine numerical simulation teams that participated in the LEAP-ASIA-2019 prediction campaign, with the results of a selected set of centrifuge model tes…
View article: LEAP-ASIA-2019 Centrifuge Test Simulations of Liquefiable Sloping Ground
LEAP-ASIA-2019 Centrifuge Test Simulations of Liquefiable Sloping Ground Open
Numerical simulations of a liquefiable sloping ground for LEAP-ASIA-2019 centrifuge tests are presented. The simulations are performed using a pressure-dependent constitutive model implemented with the characteristics of dilatancy, cyclic …
View article: Polymer Injection and Liquefaction-Induced Foundation Settlement Mitigation: A Shake Table Testing Investigation
Polymer Injection and Liquefaction-Induced Foundation Settlement Mitigation: A Shake Table Testing Investigation Open
Shake table experiments are conducted to assess the potential of the polymer injection technique as a liquefaction countermeasure. A large 2.9 m high (10 ft) laminar soil container on a 3.9×1.85 m (13×6 ft) shake table is employed. Mitigat…
View article: Shake table testing and computational framework for seismic response of utility-scale bucket foundation offshore wind turbines
Shake table testing and computational framework for seismic response of utility-scale bucket foundation offshore wind turbines Open
Shake table testing was conducted to document the seismic response of a bucket foundation offshore wind turbine (OWT) system. Salient response of the system's soil-structure interaction effects is presented and discussed. Among the observe…
View article: Guidelines for Geotechnical Finite-Element Modeling
Guidelines for Geotechnical Finite-Element Modeling Open
This paper emphasizes on the required guidelines for establishing a geotechnical finite-element model. The steps that must be taken to construct such a model are explained in a flowchart, and the methodology described therein is illustrate…
View article: Seismic response of the Eureka Channel Bridge-Foundation system
Seismic response of the Eureka Channel Bridge-Foundation system Open
Recorded earthquake motions from the highly instrumented Eureka Channel bridge-foundation system have been compiled and made available by the California Geological Survey. During eight seismic events, more than 20 data channels have been d…
View article: Correction to: Assessment of SSI effects on stiffness of single and grouped helical piles in dry sand from large shake table tests
Correction to: Assessment of SSI effects on stiffness of single and grouped helical piles in dry sand from large shake table tests Open
View article: Numerical analysis of the effect of underpass construction on an existing bridge foundation
Numerical analysis of the effect of underpass construction on an existing bridge foundation Open
Micropiles are used effectively in many ground improvement applications, such as increasing soil bearing capacity, reducing the settlement of existing foundations, strengthening existing foundations, and reducing lateral soil movement due …
View article: Canadian Geotechnical Journal — Editors’ Choices 2020
Canadian Geotechnical Journal — Editors’ Choices 2020 Open
View article: Simulate the Failure of Embankment Due toHigh-speed Train Moving Load
Simulate the Failure of Embankment Due toHigh-speed Train Moving Load Open
The stunning development of modern railways coincides with the appearance of high-speed trains, which led to an inevitability complex analysis with a focus on dynamic soil behaviour.One of the critical engineering challenges with increased…
View article: Empirical Approach To Predict Static Capacity Of Drilled Shafts BasedOn High Strain Dynamic Pile Test Results
Empirical Approach To Predict Static Capacity Of Drilled Shafts BasedOn High Strain Dynamic Pile Test Results Open
The axial compression capacity of drilled shafts using full-scale tests has received the attention of many geotechnical engineers.Regarding the extreme loads that large diameter shafts can resist, many cautions should be considered in the …
View article: LEAP-2017 Simulation Exercise: Calibration of Constitutive Models and Simulation of the Element Tests
LEAP-2017 Simulation Exercise: Calibration of Constitutive Models and Simulation of the Element Tests Open
View article: LEAP-2017: Comparison of the Type-B Numerical Simulations with Centrifuge Test Results
LEAP-2017: Comparison of the Type-B Numerical Simulations with Centrifuge Test Results Open
This paper presents comparisons of 11 sets of Type-B numerical simulations with the results of a selected set of centrifuge tests conducted in the LEAP-2017 project. Time histories of accelerations, excess pore water pressures, and lateral…
View article: Numerical Simulations of LEAP Dynamic Centrifuge Model Tests for Response of Liquefiable Sloping Ground
Numerical Simulations of LEAP Dynamic Centrifuge Model Tests for Response of Liquefiable Sloping Ground Open
This paper presents numerical simulations (modified Type-B) related to LEAP-UCD-2017 (Liquefaction Experiments and Analysis Projects) dynamic centrifuge model tests for a liquefiable sloping ground conducted by various institutions. The nu…
View article: Numerical Sensitivity Study Compared to Trend of Experiments for LEAP-UCD-2017
Numerical Sensitivity Study Compared to Trend of Experiments for LEAP-UCD-2017 Open
This paper describes the numerical sensitivity study requested prior to the December 2017 LEAP workshop. Several but not all of the simulation teams participated in this sensitivity study. The results of the sensitivity study are used to b…
View article: Seismic performance assessment of a pile-supported wharf retrofitted with different slope strengthening strategies
Seismic performance assessment of a pile-supported wharf retrofitted with different slope strengthening strategies Open
View article: Cognitive Factors Affecting Language Learning and Acquisition of Native and Non-Native Speakers
Cognitive Factors Affecting Language Learning and Acquisition of Native and Non-Native Speakers Open
T his study aimed to identify the factors that affect first language acquisition for its native speakers. It also aimed to investigate the effect of cognitive factors, and metacognitive strategies on second or foreign language learning. In…
View article: Seismic fragility analysis of pile-supported wharves with the influence of soil permeability
Seismic fragility analysis of pile-supported wharves with the influence of soil permeability Open
View article: A Comparison Study: Estimating the Axial Micropiles Capacity Using Current Practices
A Comparison Study: Estimating the Axial Micropiles Capacity Using Current Practices Open
According to the innovation of new techniques used in building constructions, a new structural case of loading appears.An additional usage of micropiles beside the conventional purpose is needed to cope with these cases of loading.Nowadays…
View article: Using Micropile to Retrofit of Tilting Building Rested on Alluvium Deposits: Case Study of Inclined Elven Stories Building at Egyptian Delta
Using Micropile to Retrofit of Tilting Building Rested on Alluvium Deposits: Case Study of Inclined Elven Stories Building at Egyptian Delta Open
Although Egypt has a wide area, nearly 1,000,000 m2, the population concentrates at Delta of the River Nile.Recently, no space for horizontal expansions, so the tall buildings are commonly used to recover the demands.The demonstrated topso…
View article: OpenSees Three-Dimensional Computational Modeling of Ground-Structure Systems and Liquefaction Scenarios
OpenSees Three-Dimensional Computational Modeling of Ground-Structure Systems and Liquefaction Scenarios Open
The OpenSees computational platform has allowed unprecedented opportunities for conducting seismic nonlinear soil-structure interaction simulations. On the geotechnical side, capabilities such as coupled solid-fluid formulations and nonlin…
View article: ALTERATIONS IN SOME BIOCHEMICAL PARAMETERS IN CATTLE AFFECTED WITH FOOT AND MOUTH DISEASE IN DAKAHLIA GOVERNORATE, EGYPT
ALTERATIONS IN SOME BIOCHEMICAL PARAMETERS IN CATTLE AFFECTED WITH FOOT AND MOUTH DISEASE IN DAKAHLIA GOVERNORATE, EGYPT Open
This study was carried out to evaluate the changes in serum biochemical parameters during foot and mouth disease (FMD) viral infection, so blood samples were collected from different farms in Dakahlia Governorate during the outbreak of the…
View article: PRENOLIN: International Benchmark on 1D Nonlinear Site‐Response Analysis—Validation Phase Exercise
PRENOLIN: International Benchmark on 1D Nonlinear Site‐Response Analysis—Validation Phase Exercise Open
This article presents the main results of the validation phase of the PRENOLIN project. PRENOLIN is an international benchmark on 1D nonlinear (NL) site-response analysis. This project involved 19 teams with 23 different codes tested. It w…
View article: FAST Simulation of Seismic Wind Turbine Response
FAST Simulation of Seismic Wind Turbine Response Open
This paper discusses recent additions to the computer simulation code FAST that allow a user to consider seismic loads.
View article: Earthquake Performance of Full-Scale Reinforced Soil Walls (NEES-2010-0936)
Earthquake Performance of Full-Scale Reinforced Soil Walls (NEES-2010-0936) Open
Title: Earthquake Performance of Full-Scale Reinforced Soil Walls (NEES-2010-0936) Year Of Curation: 2014 Description: The dynamic response and performance of earth retaining structures ha…
View article: International Benchmark on Numerical Simulations for 1D, Nonlinear Site Response (PRENOLIN): Verification Phase Based on Canonical Cases
International Benchmark on Numerical Simulations for 1D, Nonlinear Site Response (PRENOLIN): Verification Phase Based on Canonical Cases Open
PREdiction of NOn‐LINear soil behavior (PRENOLIN) is an international benchmark aiming to test multiple numerical simulation codes that are capable of predicting nonlinear seismic site response with various constitutive models. One of the …
View article: BIM-based Damage Estimation of Buildings under Earthquake Loading Condition
BIM-based Damage Estimation of Buildings under Earthquake Loading Condition Open
In this study, it is tried to provide an estimation of damages imposed to a prototype office building as a result of earthquake occurrence. For this purpose, first a model is developed in BIM and then its properties are exported to a struc…