Search Constraints

Start Over
Filtering by: Creator Vega, Fernando E. Remove constraint Creator: Vega, Fernando E. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

Search Results

  • The Art of Reducing Coastal Hazard Complexity: Coupling Physics and Probability to Understand Extremes, Variability, and Climate-dependence

    Creator:
    Anderson, Dylan L.
    Abstract:
    Coastal hazards are the result of numerous physical processes cumulatively causing water levels to flood and erode the land. The waves, storm surges, tides, and run-off contributing to elevated water levels are each the product of chaotic and random weather patterns. These stochastic weather patterns dissipate energy in Earth's climate...
    Resource Type:
    Dissertation
    Full Text:
    . Another significant thank you to Dr. Fernando Mendez. I immediately gravitated to his intuition, his hand

  • The seismic vulnerability of sheet pile walls

    Creator:
    McCullough, Nason J.
    Abstract:
    The seismic performance of port structures has been well documented following recent earthquakes, and indicates that port structures are highly susceptible to earthquake-induced damages. These damages are primarily due to soil liquefaction and the associated ground failures. Sheet pile bulkheads provide vital intermodal and lifeline transportation links between water-side and...
    Resource Type:
    Masters Thesis
    Full Text:
    Vulnerability of Sheet Pile Walls. Abstract approved: Stephen E. Dickenson The seismic performance of port

  • Munition Mobility in Mixed Grain (Sand and Cobble) Environments

    Creator:
    Paskoski, Jessica
    Abstract:
    Nearly 24% of Formerly Used Defense Sites (FUDS) containing military munitions are in the nearshore coastal zone with approximately 30% of those sites containing heterogeneous sediment compositions of gravel-sand. Previous exploration in munition mobility was performed on beaches of sandy or muddy bottoms leaving the influence of heterogeneous sediment properties...
    Resource Type:
    Masters Thesis
    Full Text:
    : Munition Mobility in Mixed Grain (Sand and Cobble) Environments Abstract approved: Meagan E. Wengrove

  • The seismic geotechnical modeling, performance, and analysis of pile-supported wharves

    Creator:
    McCullough, Nason J.
    Abstract:
    This dissertation presents the results of a research effort conducted to better understand the seismic performance and analysis of pile-supported wharves. Given the limited number of well-documented field case histories, the seismic performance of pile-supported wharves has been poorly quantified, and the analysis methods commonly employed in engineering practice have...
    Resource Type:
    Dissertation
    Full Text:
    Geotechnical Modeling, Performance, and Analysis of Pile- Supported Wharves. Abstract Approved: Stephen E

  • Dynamic behavior of silty soils

    Creator:
    Sunitsakul, Jutha
    Abstract:
    The cyclic resistance of predominantly fine-grained soils has received considerable attention following ground and foundation failures at sites underlain by silt-rich soils during recent earthquakes. In several cases substantial ground deformation and reduced bearing capacity of silt soils has been attributed to excess pore pressure generation during cyclic loading. These...
    Resource Type:
    Dissertation
    Full Text:
    (depth 6 m) computed using SHAKE and SUMDES. Top: N-S direction, Middle: E-W direction, Bottom: Vertical

  • Cyclic triaxial testing of low- to moderate-plasticity silts

    Creator:
    Butler-Brown, Jason J.
    Abstract:
    This project report presents a laboratory investigation of the dynamic behavior of saturated alluvial silty soils from sites in Oregon and Washington. The focus of the study was to document the liquefaction susceptibility, post cyclic strength, and volumetric strain behavior of the silt soils based on cyclic, undrained triaxial compression...
    Resource Type:
    Masters Thesis
    Full Text:
    Testing of Low- to Moderate- Plasticity Silts. Abstract approved: Stephen E. Dickenson This project

  • Small Unmanned Aircraft Systems (UAS) for Engineering Inspections and Geospatial Mapping

    Creator:
    Javadnejad, Farid
    Abstract:
    Small unmanned aircraft systems (UAS) carrying consumer-grade nonmetric cameras are increasingly utilized to generate high-resolution 3D geospatial data. Low cost, ease of operation, widespread availability and low altitude maneuvering capabilities of UAS, as well as the rapid development of technology and methods, make UAS-based photogrammetry applicable to many civil engineering...
    Resource Type:
    Dissertation
    Full Text:
    ) ............................................................ 81 - 3D error ( )e

  • Aseismic performance of a cable-stayed structure with decentralized H[infinity] control

    Creator:
    Chńg, Guan B.
    Abstract:
    The dissertation uses state-of-the-art structural engineering theories, in parallel with the modern and still-developing control theory of electrical engineering to mitigate the vibratory responses of a double-stayed bridge subjected to strong earthquake ground motions. First, a nonlinear finite element model of the double-stayed bridge subjected to non-uniform (multi-support) earthquake excitations...
    Resource Type:
    Dissertation
    Full Text:
    Equivalent Ee9 versus Tension in the Cable with Varying Horizontal Projected Length II, E {50, 200,500,1000

  • In vitro anaerobic trinitrotoluene (TNT) degradation with rumen fluid and an isolate, G.8

    Creator:
    Lee, Taejin
    Resource Type:
    Dissertation
    Full Text:
    McCormick et al. Ae E. coli ? 50 ppm 1982 Kaplan & Kaplan Ae Composting 9ldays ? 1990 Fernando et al. Ae

  • Assessing the Feasibility of Utilizing UAS-Based Point Clouds for Pavement Smoothness/Roughness Quantification

    Creator:
    Sen, Fatih
    Abstract:
    Transportation agencies continuously strive to improve driving quality and highway safety, which are both highly correlated with the level of smoothness of the road. The International Roughness Index (IRI) is a widely adopted, standardized metric calculated from longitudinal profile data collected on the road. Inertial profilers are devices mounted to...
    Resource Type:
    Masters Thesis
    Full Text:
    devices for both new and existing pavements (Olsen & Chin, 2012a). The ASTM E 950-94 standard groups