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Filtering by: Advisor Pyles, Marvin R. Remove constraint Advisor: Pyles, Marvin R. Academic Affiliation Civil Engineering Remove constraint Academic Affiliation: Civil Engineering

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  • 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

  • Analysis of intermediate support cable logging systems

    Creator:
    Charland, James W.
    Abstract:
    The forest products industry often uses intermediate-support cable logging systems to transport logs from the harvest site to a staging area. A method is presented to assist in the analysis and design of these cable systems. The method determines tensions in individual cables, forces on and stresses in the support...
    Resource Type:
    Masters Thesis
    Full Text:
    : Marvin R. Pyles The forest products industry often uses intermediate-support cable logging systems to

  • 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