Engineering Surveys along the Trans-Alaska Pipeline.
The three-year research project had two general objectives: 1) to systematically obtain data on selected highway, airfield and pipeline workpad test sites and adjacent terrain to establish the rates and types of modifications in permafrost-dominated regions, and 2) to provide the basis for improved...
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ftdtic:ADA173724 2023-05-15T16:37:23+02:00 Engineering Surveys along the Trans-Alaska Pipeline. Godfrey,Randy N Eaton,Robert A COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1986-09 text/html http://www.dtic.mil/docs/citations/ADA173724 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA173724 en eng http://www.dtic.mil/docs/citations/ADA173724 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Soil Mechanics Snow Ice and Permafrost Civil Engineering *BEARING STRENGTH *ROADS *PERMAFROST MODIFICATION ALASKA DEPTH SOILS SURVEYS PIPELINES LANDING FIELDS THAWING WORK ELEVATION FAILURE(MECHANICS) LAND AREAS TAPS(Trans Alaska Pipeline System) workpads WU004 PE62730A AST42 Text 1986 ftdtic 2016-02-21T02:38:45Z The three-year research project had two general objectives: 1) to systematically obtain data on selected highway, airfield and pipeline workpad test sites and adjacent terrain to establish the rates and types of modifications in permafrost-dominated regions, and 2) to provide the basis for improved design critieria and specifications governing road, airfield and workpad construction and restoration in permafrost zones that are influenced by many different seasonal climatic requires. This report presents the results of 14 test areas not covered in CRREL Report 80-19, Environmental Engineering and Ecological Baseline Investigations along the Yukon River-Prudhoe Bay Haul Road(Brown and Berg 1980). The data presented here will be utilized for improving road, workpad and airfield design and construction, and for developing methods of minimizing the impacts on the environment in Alaska. The results show that thaw depths adjacent to the test sites increased each year from 1976 to 1978, causing continued settlement along the embankments. The depths of thaw beneath the gravel surface road sideslopes has caused the trafficked surface to become narrower as the sideslopes become wider and flatter. Since the rate of permafrost degradation and resulting thaw settlement has decreased annually, the thermal regime appears to be stabilizing. When the gravel workpads, roadways and runways are graded, any edge berms that would inhibit lateral runoff of water must be removed. Runoff water that ponds on the tundra adjacent to the roadway or workpad or airfield embankments should be avoided to eliminate subsidence caused by heat absorption. Text Ice permafrost Prudhoe Bay Tundra Yukon river Alaska Yukon Defense Technical Information Center: DTIC Technical Reports database Yukon |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Soil Mechanics Snow Ice and Permafrost Civil Engineering *BEARING STRENGTH *ROADS *PERMAFROST MODIFICATION ALASKA DEPTH SOILS SURVEYS PIPELINES LANDING FIELDS THAWING WORK ELEVATION FAILURE(MECHANICS) LAND AREAS TAPS(Trans Alaska Pipeline System) workpads WU004 PE62730A AST42 |
spellingShingle |
Soil Mechanics Snow Ice and Permafrost Civil Engineering *BEARING STRENGTH *ROADS *PERMAFROST MODIFICATION ALASKA DEPTH SOILS SURVEYS PIPELINES LANDING FIELDS THAWING WORK ELEVATION FAILURE(MECHANICS) LAND AREAS TAPS(Trans Alaska Pipeline System) workpads WU004 PE62730A AST42 Godfrey,Randy N Eaton,Robert A Engineering Surveys along the Trans-Alaska Pipeline. |
topic_facet |
Soil Mechanics Snow Ice and Permafrost Civil Engineering *BEARING STRENGTH *ROADS *PERMAFROST MODIFICATION ALASKA DEPTH SOILS SURVEYS PIPELINES LANDING FIELDS THAWING WORK ELEVATION FAILURE(MECHANICS) LAND AREAS TAPS(Trans Alaska Pipeline System) workpads WU004 PE62730A AST42 |
description |
The three-year research project had two general objectives: 1) to systematically obtain data on selected highway, airfield and pipeline workpad test sites and adjacent terrain to establish the rates and types of modifications in permafrost-dominated regions, and 2) to provide the basis for improved design critieria and specifications governing road, airfield and workpad construction and restoration in permafrost zones that are influenced by many different seasonal climatic requires. This report presents the results of 14 test areas not covered in CRREL Report 80-19, Environmental Engineering and Ecological Baseline Investigations along the Yukon River-Prudhoe Bay Haul Road(Brown and Berg 1980). The data presented here will be utilized for improving road, workpad and airfield design and construction, and for developing methods of minimizing the impacts on the environment in Alaska. The results show that thaw depths adjacent to the test sites increased each year from 1976 to 1978, causing continued settlement along the embankments. The depths of thaw beneath the gravel surface road sideslopes has caused the trafficked surface to become narrower as the sideslopes become wider and flatter. Since the rate of permafrost degradation and resulting thaw settlement has decreased annually, the thermal regime appears to be stabilizing. When the gravel workpads, roadways and runways are graded, any edge berms that would inhibit lateral runoff of water must be removed. Runoff water that ponds on the tundra adjacent to the roadway or workpad or airfield embankments should be avoided to eliminate subsidence caused by heat absorption. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Godfrey,Randy N Eaton,Robert A |
author_facet |
Godfrey,Randy N Eaton,Robert A |
author_sort |
Godfrey,Randy N |
title |
Engineering Surveys along the Trans-Alaska Pipeline. |
title_short |
Engineering Surveys along the Trans-Alaska Pipeline. |
title_full |
Engineering Surveys along the Trans-Alaska Pipeline. |
title_fullStr |
Engineering Surveys along the Trans-Alaska Pipeline. |
title_full_unstemmed |
Engineering Surveys along the Trans-Alaska Pipeline. |
title_sort |
engineering surveys along the trans-alaska pipeline. |
publishDate |
1986 |
url |
http://www.dtic.mil/docs/citations/ADA173724 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA173724 |
geographic |
Yukon |
geographic_facet |
Yukon |
genre |
Ice permafrost Prudhoe Bay Tundra Yukon river Alaska Yukon |
genre_facet |
Ice permafrost Prudhoe Bay Tundra Yukon river Alaska Yukon |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA173724 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027673237192704 |