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Oregon State University Research Forests Research Projects
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Project Start Year
Project Categories
4 records found

Column Fixity and Stress Analysis of Douglas-fir

Purpose

Analysis of fixity under stress in Douglas-fir.

Project Start Date
1982-07-13
Project End Date
1982-07-24
Related Publications
N/A
Project Categories
  • Trees
  • Physiology & Genetics
Keywords
  • Column
  • columns
  • fixity
  • stress
  • douglas-fir
  • douglas fir
  • pseudotsuga menziesii
  • stressors
  • Marvin Pyles
  • Donald Rivers
Additional Information
Currently Active
No
Agency
OSU
Project Type
Research
Research Forest
N/A
Researcher
Pyles, Marvin R.
Role
C
Collaborators
Rivers, Donald G.
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193
Project ID
193

Stump Anchor Project

Purpose

We are preparing the stump anchor project for a trip to the Olympic Peninsula. We will be on the forest for about one week to train the crew and check out equipment.

Project Start Date
1985-06-20
Project End Date
1985-07-05
Related Publications
Ammeson, James E. and Pyles, Marvin R. and Laursen, Harold I. Three-Dimensional Analysis of Guyed Logging Spars. Computers and Structures, Vol. 29, No. 6, pp 1095-1099, 1988.
Ammeson, James E. and Pyles, Marvin R. and Mann, John W. Engineering Mechanics Research of Cable Logging Systems at Oregon State University. Presented at the 1987 International winter meeting of American Agricultural Engineers.
Pyles, Marvin and Stoupa, Joan. Load-Carrying Capacity of Second-Growth Douglas-Fir Stump Anchors. Western Journal of Applied Forestry 2 (3): 77-80. 1987.
Project Categories
  • Logging
  • Logging Mechanics
Keywords
  • Stump
  • stumps
  • anchor
  • anchors
  • Olympic Peninsula
  • James Ammeson
  • Marvin Pyles
Additional Information
Currently Active
No
Agency
OSU
Project Type
Research
Research Forest
N/A
Researcher
Ammeson, James E.
Role
C
Collaborators
Pyles, Marvin R.
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223
Project ID
223

Skyline Mechanics Study

Purpose

Summer 1985: We will be conducting static tests on the skyline corridor. Measuring skyline and guyline loadings, and tailtree deflections. Summer 1986: Dynamic tests will be conducted on the skyline corridor.

Project Start Date
1985-08-15
Project End Date
1993-09-21
Related Publications
N/A
Project Categories
  • Logging
Keywords
  • skyline
  • skylines
  • mechanic
  • mechanics
  • static
  • corridor
  • corridors
  • guyline
  • load
  • loadings
  • loads
  • tailtree
  • tail
  • deflection
  • deflections
  • cable
  • cabled
  • cables
  • Marvin Pyles
Additional Information
Currently Active
No
Agency
OSU
Project Type
Research
Research Forest
N/A
Researcher
Pyles, Marvin R.
Role
C
Collaborators
N/A
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Fields that will be removed when going live.
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229
Project ID
229

Geohydrologic Behavior of a steep forested slope in the Oregon coast range

Purpose

Measurements of groundwater response to precipitation. Soil sampling and characterization.

Project Start Date
1991-08-26
Project End Date
1994-03-31
Related Publications
N/A
Project Categories
  • Environmental Factors
  • Soil
Keywords
  • geohydrologic
  • hydrological
  • hydrology
  • behavior
  • steep
  • forest
  • forested
  • slope
  • slopes
  • oregon
  • coast
  • costal
  • geo
  • groundwater
  • water
  • precipitation
  • soil
  • soils
  • Marvin Pyles
  • Mark Bransom
Additional Information
Currently Active
No
Agency
OSU
Project Type
Research
Research Forest
N/A
Researcher
Bransom, Mark
Role
C
Collaborators
Pyles, Marvin R.
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Fields that will be removed when going live.
Import Unique ID
305
Project ID
305

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