Author: George Filz
Publisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 102
Book Description
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. The effect of drying on the soils was studied by conducting the Atterberg Limits tests on materials which had not been dried below their field water content and comparing the results to those of Atterberg Limits tests conducted on air-dried material. Nine of the 10 samples studied exhibited a marked decrease in plasticity as a result of drying. Consolidated-undrained triaxial shear tests with pore pressure measurements were conducted on both undisturbed and compacted samples to evaluate the soils' effective strength parameters. Test results on several undisturbed specimens from a single site often did not provide comparable results because of material variability. In general, an increase in effective angle of internal friction with decreasing plastic index and increasing dry density was observed. Applications of the test results to problems in slope stability analysis and use of the soils in engineered construction are discussed.
Engineering Properties of Southeast Alaskan Forest Soils
Author: George Filz
Publisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 102
Book Description
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. The effect of drying on the soils was studied by conducting the Atterberg Limits tests on materials which had not been dried below their field water content and comparing the results to those of Atterberg Limits tests conducted on air-dried material. Nine of the 10 samples studied exhibited a marked decrease in plasticity as a result of drying. Consolidated-undrained triaxial shear tests with pore pressure measurements were conducted on both undisturbed and compacted samples to evaluate the soils' effective strength parameters. Test results on several undisturbed specimens from a single site often did not provide comparable results because of material variability. In general, an increase in effective angle of internal friction with decreasing plastic index and increasing dry density was observed. Applications of the test results to problems in slope stability analysis and use of the soils in engineered construction are discussed.
Publisher:
ISBN:
Category : Forest soils
Languages : en
Pages : 102
Book Description
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. The effect of drying on the soils was studied by conducting the Atterberg Limits tests on materials which had not been dried below their field water content and comparing the results to those of Atterberg Limits tests conducted on air-dried material. Nine of the 10 samples studied exhibited a marked decrease in plasticity as a result of drying. Consolidated-undrained triaxial shear tests with pore pressure measurements were conducted on both undisturbed and compacted samples to evaluate the soils' effective strength parameters. Test results on several undisturbed specimens from a single site often did not provide comparable results because of material variability. In general, an increase in effective angle of internal friction with decreasing plastic index and increasing dry density was observed. Applications of the test results to problems in slope stability analysis and use of the soils in engineered construction are discussed.
Application of Geotechnical Data to Resource Planning in Southeast Alaska
Author: Warren Lee Schroeder
Publisher:
ISBN:
Category : Slopes (Soil mechanics)
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Slopes (Soil mechanics)
Languages : en
Pages : 28
Book Description
Proceedings of the Alaska Forest Soil Productivity Workshop
Author:
Publisher:
ISBN:
Category : Forest productivity
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category : Forest productivity
Languages : en
Pages : 132
Book Description
Spatial and Regional Analysis Methods in Forestry Economics
Author: Alex Obiya
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
Book Description
Soils and Site Index in Southeast Alaska
Author: Freeman R. Stephens
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 0
Book Description
Soil and Watershed Characteristics of Southeast Alaska and Some Western Oregon Drainages
Author: Freeman R. Stephens
Publisher:
ISBN:
Category : Watersheds
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Watersheds
Languages : en
Pages : 32
Book Description
Physical Soil Characteristics Related to Site Quality in Climax Stands of Southeast Alaska
Author: Richard M. Godman
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
Exploratory Study of the Principal Soil Groups of Alaska
Author: Charles Edwin Kellogg
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 148
Book Description
Pp. 134.
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 148
Book Description
Pp. 134.
Proceedings of the ... Annual Engineering Geology and Soils Engineering Symposium
Author:
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 364
Book Description
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 364
Book Description
General Technical Report WO.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 228
Book Description