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Filtering by: Advisor Pyles, Marvin R. Remove constraint Advisor: Pyles, Marvin R. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Laboratory investigation of the mechanics of raveling soils

    Creator:
    Saunders, George P.
    Abstract:
    Oregon's forestry industry has and will continue to be a vital component of Oregon's economy, with twenty-two percent of Oregon's 1986 gross state product and thirty-nine percent of Oregon's 1986 gross manufacturing product related the forestry goods. An integral component to proper management of Oregon's forestry lands is Sustaining the...
    Resource Type:
    Masters Thesis

  • Mechanics and movement of the Lookout Creek Earthflow

    Creator:
    Mills, Keith A.
    Abstract:
    The Lookout Creek Earthflow is located in the Cascade Mountain Range in western Oregon. The Cascade Mountains are mainly volcanic in origin, and deposits in and around the slide have a complex geomorphic history,, affected by glacial, mass movement, and fluvial processes. The currently moving land mass is about 1600...
    Resource Type:
    Masters Thesis

  • Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

    Creator:
    Bransom, Mark
    Abstract:
    Two hilislope sites in the central Oregon Coast Range were instrumented and monitored for winter precipitation and saturated and unsaturated subsurface conditions. The study sites were near-ridge depressions typically known as headwalls. Based on results of the monitoring, two existing mathematical models were adapted to predict piezometric levels in headwalls...
    Resource Type:
    Dissertation

  • Reducing sediment production from forest roads during wet-weather use

    Creator:
    Toman, Elizabeth Myers
    Abstract:
    Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather...
    Resource Type:
    Dissertation
    Full Text:
    : ________________________________________ _____________________________________ Arne E. Skaugset Marvin R. Pyles Forest roads

  • Streambed scour and redeposition behavior in streambed simulated culverts over an annual period

    Creator:
    Stewart, Anna
    Abstract:
    The objective of this study was to provide first order observations of bed level changes occurring in streambed simulated culverts throughout an annual period. To accomplish this, 30 culvert sites were selected in Oregon and Washington, and monitored over, at least, a 2 year period. Streambed scour and redeposition data...
    Resource Type:
    Honors College Thesis
    Full Text:
    : _____________________________________________________________________ Marvin Pyles The objective of this study was to provide first order observations of bed

  • Simplified stability assessment for low volume road cut and fill slopes

    Creator:
    Pratt, Randy C.
    Abstract:
    Many miles of roads are built in the Pacific Northwest Forests to provide access for logging and fire protection. Logging roads often cross steep mountainous terrain. Logging roads and the associated cut and fill slopes represent a discontinuity in the natural stress state in the soil mantle. These conditions result...
    Resource Type:
    Masters Thesis
    Full Text:
    Road Cut and Fill Slopes Abstract approved: Redacted for Privacy Dr. Marvin Pyles /1 Many miles of

  • Behavior and load carrying capacity of stump anchors

    Creator:
    Stoupa, Joan
    Abstract:
    Research was conducted to study the behavior and load carrying capacity of stump anchors. A field testing program was undertaken to determine the response and strength characteristics of second growth Douglas-fir (Pseudotsuga menziesii) stumps ranging in diameter from 6 to 17 inches. Horizontal and vertical stump movements due to an...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciation to my advisor, Dr. Marvin Pyles, for his guidance, patience, and encouragement throughout this