Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings.
Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest...
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ftdtic:ADA178243 2023-05-15T16:37:46+02:00 Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. Johnson,Thaddeus C Berg,Richard L Chamberlain,Edwin L Cole,David M WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB 1986-12 text/html http://www.dtic.mil/docs/citations/ADA178243 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA178243 en eng http://www.dtic.mil/docs/citations/ADA178243 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Civil Engineering Test Facilities Equipment and Methods *FREEZING *LANDING FIELDS *THAWING *SOIL TESTS *FROST HEAVE STRESSES MATHEMATICAL MODELS ALGORITHMS RECOVERY LABORATORY TESTS PREDICTIONS VALIDATION PROBABILITY DEFLECTION TEST METHODS PAVEMENTS SOILS SEASONAL VARIATIONS SURVEYS TENSION GAMMA RAYS LABORATORY PROCEDURES INDEXES LABORATORIES FROST ROADS MOISTURE PERMAFROST RESILIENCE FROST ACTION PE62730A AST42 Text 1986 ftdtic 2016-02-21T03:13:47Z Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Civil Engineering Test Facilities Equipment and Methods *FREEZING *LANDING FIELDS *THAWING *SOIL TESTS *FROST HEAVE STRESSES MATHEMATICAL MODELS ALGORITHMS RECOVERY LABORATORY TESTS PREDICTIONS VALIDATION PROBABILITY DEFLECTION TEST METHODS PAVEMENTS SOILS SEASONAL VARIATIONS SURVEYS TENSION GAMMA RAYS LABORATORY PROCEDURES INDEXES LABORATORIES FROST ROADS MOISTURE PERMAFROST RESILIENCE FROST ACTION PE62730A AST42 |
spellingShingle |
Snow Ice and Permafrost Civil Engineering Test Facilities Equipment and Methods *FREEZING *LANDING FIELDS *THAWING *SOIL TESTS *FROST HEAVE STRESSES MATHEMATICAL MODELS ALGORITHMS RECOVERY LABORATORY TESTS PREDICTIONS VALIDATION PROBABILITY DEFLECTION TEST METHODS PAVEMENTS SOILS SEASONAL VARIATIONS SURVEYS TENSION GAMMA RAYS LABORATORY PROCEDURES INDEXES LABORATORIES FROST ROADS MOISTURE PERMAFROST RESILIENCE FROST ACTION PE62730A AST42 Johnson,Thaddeus C Berg,Richard L Chamberlain,Edwin L Cole,David M Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
topic_facet |
Snow Ice and Permafrost Civil Engineering Test Facilities Equipment and Methods *FREEZING *LANDING FIELDS *THAWING *SOIL TESTS *FROST HEAVE STRESSES MATHEMATICAL MODELS ALGORITHMS RECOVERY LABORATORY TESTS PREDICTIONS VALIDATION PROBABILITY DEFLECTION TEST METHODS PAVEMENTS SOILS SEASONAL VARIATIONS SURVEYS TENSION GAMMA RAYS LABORATORY PROCEDURES INDEXES LABORATORIES FROST ROADS MOISTURE PERMAFROST RESILIENCE FROST ACTION PE62730A AST42 |
description |
Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads. |
author2 |
WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB |
format |
Text |
author |
Johnson,Thaddeus C Berg,Richard L Chamberlain,Edwin L Cole,David M |
author_facet |
Johnson,Thaddeus C Berg,Richard L Chamberlain,Edwin L Cole,David M |
author_sort |
Johnson,Thaddeus C |
title |
Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
title_short |
Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
title_full |
Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
title_fullStr |
Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
title_full_unstemmed |
Frost Action Predictive Techniques for Roads and Airfields; A Comprehensive Survey of Research Findings. |
title_sort |
frost action predictive techniques for roads and airfields; a comprehensive survey of research findings. |
publishDate |
1986 |
url |
http://www.dtic.mil/docs/citations/ADA178243 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA178243 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA178243 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766028066706948096 |