Index Catalog // ScholarsArchive@OSU

Centrifuge Modeling of Soil Response to Tsunami-like Rapid Flooding and the Subsequent Drawdown

Creator:: Exton, Margaret C.
Abstract:: Soil instability from tsunami hazards causes substantial damage to coastal infrastructure (e.g., the damage caused by the 2011 Great East Japan Tsunami, or the Heisei Tsunami). Tsunamis are unpredictable, so it is difficult to obtain field-scale measurements. Simulating tsunamis in a laboratory setting is therefore important to further understanding of...
Resource Type:: Dissertation
Full Text:: Calibration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 LIST OF FIGURES Figure

A Full-Scale Experimental Investigation of the Bearing Performance of Aggregate Pier-Supported Shallow Foundations

Creator:: Martin, John P.
Abstract:: Aggregate piers have been used for centuries, with increasing occurrence in the last few decades. Their usage has been driven by land development demand and enabled through equipment and engineering improvements. Understanding the principles controlling bearing capacities and serviceability performance has been an ongoing area of interest for structures supported...
Resource Type:: Masters Thesis
Full Text:: ) sleeve friction, d) friction ratio (Rf = fs/qt) and e) Ic, with depth

Stability of heterogeneous and anisotropic slopes determined by the compound logarithmic spiral limit equilibrium method

Creator:: Stockton, Ezra J.
Abstract:: The logarithmic-spiral (log-spiral) limit equilibrium procedure for slope stability analysis rigorously satisfies both force and moment equilibrium with a failure surface geometry formulated as a function of the soil’s angle of internal friction. Within the framework of limit equilibrium, this procedure has, in the past, been primarily limited to homogeneous...
Resource Type:: Masters Thesis
Full Text:: the minimum safety factor or critical factor of safety, FS. The limit equilibrium logarithmic

Large–Scale Laboratory Experiment and Numerical Simulation of Tsunami Forces on a Bridge Deck

Creator:: Xiang, Tao
Abstract:: The fluid impact forces on a bridge superstructure in horizontal and vertical directions due to tsunamis represented by solitary waves are investigated through a large-scale laboratory experiment and numerical simulations. The experiment is conducted in a two-dimensional wave basin using a 1:5 scaled reinforced concrete bridge deck model tested under...
Resource Type:: Masters Thesis
Full Text:: 𝐹𝑟 Additional gravity load 𝐹𝑠 Hydrostatic force 𝐹𝑠_𝐵𝑎𝑐𝑘 Downstream hydrostatic force

Enhancing Design of Geosynthetic-Reinforced Soil Supporting Spread Footings

Creator:: Xie, Yonggui
Abstract:: Internal stability of Geosynthetic-Reinforced Soil (GRS) walls are conventionally assessed using lateral earth pressure methods. Determination of these pressures is a key component of limit state design as it enables determination of mobilized resisting forces in reinforcements needed to ensure stability and function of the GRS structure. However, conventional methods...
Resource Type:: Dissertation

Evaluation of straw wattle placement and surficial slope stability

Creator:: Rikli, Anthony M.
Abstract:: Straw wattles are common erosion control devices used to trap sediment. This thesis studies the relationship of straw wattles on slope stability through a case study demonstrating their use on steep slopes (1.5H:1V) for the US20 highway realignment project. Several surficial slope failures have occurred on these fill slopes, often...
Resource Type:: Masters Thesis
Full Text:: Percent Consolidation d100 Displacement at One Hundred Percent Consolidation FS Factor of Safety H

Unsaturated Soils and Foundation Design : Theoretical Considerations for an Effective Stress Framework

Creator:: Baker, Josiah D.
Abstract:: This study presents the theoretical background necessary to model the bearing capacity of shallow and deep foundations in partially saturated soils. The conventional bearing capacity equations for shallow and deep foundations and the 𝛽-method for deep foundation side resistance have been modified to include the effects of matric suction and...
Resource Type:: Masters Thesis

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Creator:: Reddy, Seth C.
Abstract:: Deep foundations are necessary for the construction of many structures, such as bridges and buildings, located in areas unsuitable for shallow foundations. Owing to the inherent variability of soil and the complex changes that occur in the soil adjacent to deep foundations as they are installed, the ability to accurately...
Resource Type:: Dissertation
Full Text:: ...................................................................... 232 5.4 DEVELOPMENT OF THE ULTIMATE PILE RESISTANCE ....................... 234 5.5 REVISED DESIGN

Ground Improvement and Liquefaction Mitigation using Driven Timber Piles

Creator:: Gianella, Tygh N.
Abstract:: Seismically-induced liquefaction represents a major cause of damage to civil infrastructure and can result in significant damage following major earthquakes. Liquefaction can occur when earthquake ground motions raise pore-water pressures in loose, sandy soil, resulting in a substantial decrease of soil strength. Owing to the potential for instability following liquefaction,...
Resource Type:: Masters Thesis
Full Text:: for a post-installation FS=1.0 (after Schaefer et al., 1997). ........... 36 Figure 2.20

Testing and Modeling of a Cross-Laminated Timber Pier-and-Spandrel Seismic Retrofit Solution for Unreinforced Masonry Buildings

Creator:: Engleson, Renee M.
Abstract:: Cross-laminated timber (CLT) is an attractive building material because it is renewable, promotes fast installation, and possesses a high strength-to-weight ratio. The use of CLT in seismic applications has become increasingly common with the development of post-tensioned CLT rocking wall lateral force resisting systems (LFRS). The CLT pier-and-spandrel system designed,...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Centrifuge Modeling of Soil Response to Tsunami-like Rapid Flooding and the Subsequent Drawdown

A Full-Scale Experimental Investigation of the Bearing Performance of Aggregate Pier-Supported Shallow Foundations

Stability of heterogeneous and anisotropic slopes determined by the compound logarithmic spiral limit equilibrium method

Large–Scale Laboratory Experiment and Numerical Simulation of Tsunami Forces on a Bridge Deck

Enhancing Design of Geosynthetic-Reinforced Soil Supporting Spread Footings

Evaluation of straw wattle placement and surficial slope stability

Unsaturated Soils and Foundation Design : Theoretical Considerations for an Effective Stress Framework

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Ground Improvement and Liquefaction Mitigation using Driven Timber Piles

Testing and Modeling of a Cross-Laminated Timber Pier-and-Spandrel Seismic Retrofit Solution for Unreinforced Masonry Buildings

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