Index Catalog // ScholarsArchive@OSU

Sediment transport in a gravel-bottomed stream

Creator:: Milhous, Robert T.
Abstract:: Sediment transport in a gravel-bottomed stream located in the Oregon Coast Range was studied to determine the effects of a single layer of large particles (the armour layer) located at the surface of the bed material. The bed load transport system was studied jointly with suspended sediment transport to understand...
Resource Type:: Dissertation
Full Text:: to 69% of the D65 size. The critical shear stress of the arrnouring material is at a minimum for a

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:: Safety with Inclined Bedrock and Top Slope 97 2C Comparison of FS Between SSTAB1 and Cousins' Solution

Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

Creator:: Kanerva, Hannele K.
Abstract:: Low temperature cracking is attributed to tensile stresses induced in an asphalt concrete pavement that develop when the pavement is subjected to a cold temperature. Cracking results in poor ride quality and a reduction in service life of the pavement. Low temperature cracking has been predicted by regression equations, mechanistic...
Resource Type:: Dissertation
Full Text:: Temperature profile for USACRREL section lb at station -11.6 69 3.11 Crack map for USACRREL test sections

Biaxial bending of concrete members with applications to prestressed concrete power poles

Creator:: Stephens, Charles Talmon
Abstract:: A method of analysis of arbitrarily shaped prestressed concrete members for biaxial bending is given. The stress-strain curve of the concrete is represented by two parabolic segments, and the effects of strain hardening of the steel are included in the analysis. An iterative numerical procedure is used to solve for...
Resource Type:: Dissertation
Full Text:: in Figure 2.4 and is represented by the following equations. 0 < S s < S Fs = E 1 Sspi Sp/ < Ss

Stability of gravel at artificially created spawning beds in uncontrolled streams

Creator:: Helland-Hansen, Erik Andreas
Abstract:: Twenty-five gabion-type structures across the main stem and tributaries of the Siuslaw River in the Oregon Coastal Range, installed to expand the available spawning area for fish, were investigated for their ability to perform gravel control functions such as trapping bedload carried by the stream or holding gravel placed behind...
Resource Type:: Masters Thesis
Full Text:: Scour and channelized flow through gravel beds, Grenshaw Creek 69 18 Schematic diagram of research

Wave interaction with pile supported harbor facilities

Creator:: Dummer, Jerome Martin
Resource Type:: Masters Thesis

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

Some aspects of the biological metabolism of a partially colloidal substrate

Creator:: Berg, Richard Harold
Abstract:: An investigation was conducted to ascertain if certain concepts of microbial metabolism, derived from studies using simple soluble substrates, are applicable to the biological assimilation of complex, partially colloidal suspensions. A mixture containing one gram of Carnation dry-skim milk is considered to be a complex, partially colloidal substrate and was...
Resource Type:: Dissertation
Full Text:: what magnitude the substrate BOD is partitioned into syn- thesis (fs) and respiration or oxidation

An evaluation of coastal Oregon's marginal aggregates

Creator:: Clemmons, Gregory H.
Abstract:: Coastal Oregon is deficient in quality construction aggregates. There is, however, an abundance of lower quality, or marginal, aggregate available for construction purposes. An evaluation of these marginal aggregates is the purpose of this paper. There are four classes of marginal rocks found on the Oregon Coast. Basalts, high in...
Resource Type:: Masters Thesis
Full Text:: Plastic Strain (in/in x 10-3) after 35,000 Loading Repe- titions at a 1 = 35 psi and a 3 10 psi 69 18

Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

Creator:: Chen, Min-Chu
Abstract:: A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder under the action of surface gravity waves of finite amplitude in water of-finite depth. Boundary value problems are derived by using a perturbation expansion and the solutions for the diffracted waves are given in terms of Fredholm...
Resource Type:: Dissertation

ScholarsArchive@OSU

Sediment transport in a gravel-bottomed stream

Simplified stability assessment for low volume road cut and fill slopes

Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

Biaxial bending of concrete members with applications to prestressed concrete power poles

Stability of gravel at artificially created spawning beds in uncontrolled streams

Wave interaction with pile supported harbor facilities

Behavior and load carrying capacity of stump anchors

Some aspects of the biological metabolism of a partially colloidal substrate

An evaluation of coastal Oregon's marginal aggregates

Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

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