Browsing Civil and Environmental Engineering by Title
Now showing items 385-404 of 781
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Gas Driven Fracture during Gas Production using HeleShaw Cell
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Methane hydrate is considered a potential energy source, with worldwide reserves on the order of 500-10,000 Gt of carbon. The production of Methane from hydratebearing sediments requires hydrate dissociation for releasing ... -
Generalized spatial aliasing solution for the dispersion analysis of infinitely periodic multilayered composites using the finite element method
( American Society of Mechanical Engineers , 2017 , Article)The finite element (FE) method offers an efficient framework to investigate the evolution of phononic crystals which possess materials or geometric nonlinearity subject to external loading. Despite its superior efficiency, ... -
Genetic algorithm use for internally resonating lattice optimization: Case of a beam-like metastructure
( Springer New York LLC , 2016 , Conference Paper)Metamaterial inspired structures, or metastructures, are structural members that incorporate periodic or nonperiodic inserts. Recently, a new class of metastructures has been introduced which feature chiral lattice inserts. ... -
Genetic algorithm-based multi-objective model for scheduling of linear construction projects
( Elsevier Ltd , 2007 , Article)This paper presents a genetic algorithm-based multi-objective optimization model for the scheduling of linear construction projects. The model allows construction planners to generate and evaluate optimal/near-optimal ... -
Geomechanical Modelling of Railroad Ballast: A Review
( Springer , 2019 , Article)Traditional ballasted tracks have been used intensively around the world with ballast as the main material for tracks. Ballast has a significant contribution to the track alignment, stability and sustainability. After ... -
Geosynthetic-reinforced soils above voids: Observation and prediction of soil arching
( Elsevier , 2021 , Article)The assumption with the biggest impact on the design of geosynthetic-reinforced soils above voids is the presence and degree of soil arching, which affects the predicted applied stress on the geosynthetic. A series of ... -
Geosynthetic-reinforced soils above voids: Observation of soil and geosynthetic deformation mechanisms
( Elsevier , 2021 , Article)Understanding how a geosynthetic-reinforced soil deforms in response to the formation of an underlying void is crucial to provide appropriate designs of these systems. Centrifuge models employing a trapdoor to simulate the ... -
Geotechnical considerations on the design of piled rafts on rock
( Research Publishing Services , 2011 , Conference Paper)This research shows the effect of misestimating the pile spring constant (Kpl) and the modulus of subgrade reaction (Ksg) on design of piled rafts on rock. The high mass stiffness of rock contacting the base of such rafts ... -
Go/no-go decision model for owners using exhaustive CHAID and QUEST decision tree algorithms
( MDPI , 2021 , Article)Go/no-go execution decisions are one of the most important strategic decisions for owners during the early stages of construction projects. Restructuring the process of decision-making during these early stages may have ... -
Green Building success factors: An exploratory inquiry
( Elsevier , 2023 , Article)Green Building (GB) projects are being developed to address the socio-environmental issues of building construction and operation. The successful development of GBs is subject to a multitude of enabling conditions known ... -
Ground-borne vibration investigation by model-ling the tunnel-soil interaction using a finite element package
( International Institute of Acoustics and Vibration, IIAV , 2018 , Conference Paper)In 2013, Qatar Rail announced major rail projects that include an urban rail network for the city of Doha with lines running on the surface and underground which are expected to be in operation by 2020. Railway systems are ... -
Ground-borne vibrations due to railway traffic in urbanized areas: A numerical study about traffic in trench cross-sections
( National Technical University of Athens , 2017 , Conference Paper)Modern cities require efficient mass transportation systems like subway and railway networks. Due to the lack of available space and also due to environmental concerns, it is usually preferable to use the underground space ... -
Groundwater pollution by petroleumderived contaminants in coastal semiarid environment
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)A common source of contamination of soil and groundwater in arid and (semi)-arid coastal regions are accidental spills of petroleum products, such as crude oil, gasoline, and diesel fuel. Groundwater pollution by petroleum ... -
Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
( Hindawi Limited , 2018 , Article)The operations of multilane roundabouts, especially three-lane roundabouts, are unique and more complicated than any other type of roundabouts. This study aims to analyze driver behavior and estimate the critical gap at ... -
Grouping minimum REV of porosity and tortuosity based on descriptors of sand grains
( European Association of Geoscientists and Engineers, EAGE , 2019 , Conference Paper)In sandy reservoirs, selecting a representative elementary volume (REV) for the pore scale, is essential for predictive upscaling toward the reservoir scale. The porosity and tortuosity of a sand media are used for REV ... -
Harvesting of Chlorella sp. microalgae by dielectrophoretic force using titanium dioxide (TiO2) insulated electrodes
( Elsevier , 2022 , Article)The harvesting of microalgae using conventional technologies suffers from biomass contamination, high energy consumption and long processing time. In this study, titanium dioxide insulated stainless steel electrodes were ... -
Hierarchy based information requirements for sustainable operations of buildings in Qatar
( Elsevier , 2017 , Article)Information flows in construction projects are generally focused on the needs of the design and construction phases. This creates disruption of workflows across the project stages and in particular with the information ... -
High and Ultra-high Performance Concretes: A Solution to Reinforced Concrete Durability under Harsh Climate of Arabian Gulf
( Qatar Univesrity Press , 2020 , Conference Paper)Reinforced concrete (RC) infrastructure in the Arabian Gulf region deteriorates under severe environmental conditions after only short service life. To overcome this problem, it is imperative to employ high-quality concretes ... -
How Can Collaborative Circular Economy Practices in Modular Construction Help Fédération Internationale de Football Association World Cup Qatar 2022 to Achieve Its Quest for Sustainable Development and Ecological Systems?
( Frontiers , 2021 , Article)Embarking on the World Cup journey with circular collaborative strategies can positively impact the environment and socioeconomic outcomes to prosper development at the center of sustainability. World Cup mega-events are ... -
Human factors and road safety in the 2nd international traffic safety conference
( Taylor & Francis , 2023 , Other)This special issue presents selected articles submitted to the 2nd International Traffic Safety Conference 2023, Doha, (Qatar). More than 150 papers were submitted and they were peer-reviewed. Only 16 papers were highly ...