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  • Fabric reinforcement of low embankments on soft foundations

    Creator:
    Greenway, Daryl Rodney
    Abstract:
    Nonlinear large deflection finite element analyses of a fabric reinforced embankment on muskeg were performed to predict fabric tension and the effect of fabric stiffness on embankment deflections. The predicted fabric tensions were compared with the results of a sliding block analysis, and show this simple analysis requires further correlation...
    Resource Type:
    Masters Thesis
    Full Text:
    to Dr. W. L. Schroeder for first awakening me to soil mechanics, and for his support during two

  • Tsunami-induced Soil Instability

    Creator:
    Fischer, Rachael Marie
    Abstract:
    Recent tsunami field surveys from the 2011 Great East Japan Earthquake and Tsunami have recorded numerous examples of tsunami-induced soil instability: significant scour around foundations, foundation failure of piles, and other damage caused by liquefaction. From the observations of soil instability leading to the failure of critical coastal structures, it...
    Resource Type:
    Masters Thesis
    Full Text:
    Japan Earthquake and Tsunami have recorded numerous examples of tsunami-induced soil instability

  • Soil column desorption studies on a chromium contaminated soil

    Creator:
    Ball, Bruce L.
    Abstract:
    Soil column studies were performed on a chromium contaminated soil from the United Chrome Products Superfund Site currently undergoing a pump-and-treat cleanup process. The goal of the research was to provide insight into the feasibility of chemically changing the injection fluid of the pump-and-treat system to enhance hexavalent chromium (Cr(VI))...
    Resource Type:
    Masters Thesis
    Full Text:
    chromium contaminated soil from the United Chrome Products Superfund Site currently undergoing a pump-and

  • Behavioral thresholds in mixtures of sand and clay

    Creator:
    Simpson, Daniel Corder
    Abstract:
    Nearly all soils are comprised of mixtures of coarse and fine particles. Behavior under mechanical and thermal loading of soil is strongly influenced (and in some cases, governed) by the ratio of coarse to fine particles. A better understanding of the fundamental behavior of soil mixtures will provide insight to...
    Resource Type:
    Masters Thesis
    Full Text:
    thermal loading of soil is strongly influenced (and in some cases, governed) by the ratio of coarse to

  • Engineering properties of Oregon and Washington coast range soils

    Creator:
    Alto, Jalmer V.
    Abstract:
    Landslides are frequent in the steep forested regions of the Oregon and Washington coastal mountain ranges. The need for forest products has resulted in increasing logging activity in these marginally stable areas. The occurrence of landslides has increased, which in turn has focused greater interest in slope stability management. Of...
    Resource Type:
    Masters Thesis
    Full Text:
    problems has developed. Topography, soil properties, hydrologic conditions, geology, and vegetation are

  • Static and cyclic response of ecoroof soil

    Creator:
    Kraupa, Travis J.
    Abstract:
    Green technology in the United States has been on the rise over the past few decades in the United States. However, certain green technologies have been developed in the absence of design standards. Ecoroofs, which are vegetated soil masses placed on the top of a building’s roof structure, present several...
    Resource Type:
    Masters Thesis
    Full Text:
    Static and Cyclic Response of Ecoroof Soil

  • Bioremediation of low-permeability, pentachlorophenol-contaminated soil by laboratory and full-scale processes

    Creator:
    Havighorst, Mark B.
    Abstract:
    Ex-situ bioremediation of saturated soil contaminated with pentachlorophenol and 2,3,5,6-TeCP is commonly accomplished by landfarming or by treatment in a bioreactor. Treating saturated, low-permeability soils in bioreactors, without pre-treatment requires a reactor capable of promoting anaerobic and/or aerobic removal of chlorophenols without transferring these contaminants to the aqueous phase. A...
    Resource Type:
    Masters Thesis
    Full Text:
    Low-Permeability, Pentachlorophenol-Contaminated Soil by Laboratory and Full-Scale Processes

  • Engineering properties of Southeast Alaskan forest soils

    Creator:
    Filz, George
    Abstract:
    The strength of both undisturbed and compacted soils from 10 sites in the slide-prone Tongass National Forest in SE Alaska were studied. Index property tests were also conducted on disturbed samples. The index tests included natural water content, Atterberg Limits, specific gravity of solids, grain size distribution, and moisture-density relationship....
    Resource Type:
    Masters Thesis
    Full Text:
    1 Geology and Hydrology of the Tongass 2 Soil Sampling 3 Testing Program 7 Data Reduction 10

  • Influence of expansive soils on structures in the Eugene area

    Creator:
    Bonell, John Alexander
    Abstract:
    Expansive soils in Eugene, Oregon present a problem to residents, consultants, contractors, and the city government. During the years 1977 to 1979, the nature and extent of the problem was identified, including an outline of the local occurrence of expansive soils and possible engineering solutions to the most often encountered...
    Resource Type:
    Masters Thesis
    Full Text:
    , and specific design methods of treating expansive soil problems. Interviews with city inspectors

  • Predicting pore pressure response in in-situ liquefaction studies using controlled blasting

    Creator:
    Eller, James Michael
    Abstract:
    Originally used as a method to densify loose soils, controlled blasting has expanded its applicability to geotechnical engineering by becoming a research tool to physically generate liquefaction for full-scale in-situ tests, ranging from seismic performance of deep foundations to evaluating ground improvement techniques. Current methods used to design the blasting...
    Resource Type:
    Masters Thesis
    Full Text:
    statistical analysis was performed on the recorded blasting results and in-situ soil data to observe if in