Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures
The design of pavement structures in cold climates must account for the changes in soil properties due to the influence of freezing and thawing cycles. The calculation of the frost penetration depth is a fundamental step in the design and evaluation of pavement structures by the U.S. Department of D...
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ftdtic:ADA559915 2023-05-15T16:37:52+02:00 Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures Bianchini, Alessandra Gonzalez, Carlos R ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB 2012-04 text/html http://www.dtic.mil/docs/citations/ADA559915 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA559915 en eng http://www.dtic.mil/docs/citations/ADA559915 Approved for public release; distribution is unlimited. DTIC Snow Ice and Permafrost Civil Engineering *PAVEMENTS COLD REGIONS COMPUTER APPLICATIONS COMPUTER PROGRAMS DEPTH FROST HEAT FLUX THAWING FROST DEPTH HEAT FLOW MODBERG EQUATION MODIFIED BERGGREN EQUATION PAVEMENT STRUCTURES THAW DEPTH Text 2012 ftdtic 2016-02-23T10:53:14Z The design of pavement structures in cold climates must account for the changes in soil properties due to the influence of freezing and thawing cycles. The calculation of the frost penetration depth is a fundamental step in the design and evaluation of pavement structures by the U.S. Department of Defense (DoD). To compute the frost penetration, the DoD currently uses the modified Berggren (ModBerg) equation. The Unified Facilities Criteria (UFC) 3-130-06 includes a methodology to manually compute the frost depth. The Pavement-Transportation Computer Assisted Structural Engineering (PCASE) software incorporates a more accurate numerical solution of the ModBerg equation, which in some instances provides slightly different values than the manual solution described in the UFC. Researchers from the U.S. Army Engineer Research and Development Center (ERDC) realized the need to explain why the same procedure results in different values of the frost depth, and sought to reaffirm the importance of advanced numerical tools in pavement design and evaluation. The objective of this report is to present the solution of the heat equation applied to a one-dimensional homogeneous and isotropic layer, which is currently implemented in the PCASE software. The report also explains the differences between the UFC- and PCASE-computed solutions. The original document contains color images. 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 *PAVEMENTS COLD REGIONS COMPUTER APPLICATIONS COMPUTER PROGRAMS DEPTH FROST HEAT FLUX THAWING FROST DEPTH HEAT FLOW MODBERG EQUATION MODIFIED BERGGREN EQUATION PAVEMENT STRUCTURES THAW DEPTH |
spellingShingle |
Snow Ice and Permafrost Civil Engineering *PAVEMENTS COLD REGIONS COMPUTER APPLICATIONS COMPUTER PROGRAMS DEPTH FROST HEAT FLUX THAWING FROST DEPTH HEAT FLOW MODBERG EQUATION MODIFIED BERGGREN EQUATION PAVEMENT STRUCTURES THAW DEPTH Bianchini, Alessandra Gonzalez, Carlos R Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
topic_facet |
Snow Ice and Permafrost Civil Engineering *PAVEMENTS COLD REGIONS COMPUTER APPLICATIONS COMPUTER PROGRAMS DEPTH FROST HEAT FLUX THAWING FROST DEPTH HEAT FLOW MODBERG EQUATION MODIFIED BERGGREN EQUATION PAVEMENT STRUCTURES THAW DEPTH |
description |
The design of pavement structures in cold climates must account for the changes in soil properties due to the influence of freezing and thawing cycles. The calculation of the frost penetration depth is a fundamental step in the design and evaluation of pavement structures by the U.S. Department of Defense (DoD). To compute the frost penetration, the DoD currently uses the modified Berggren (ModBerg) equation. The Unified Facilities Criteria (UFC) 3-130-06 includes a methodology to manually compute the frost depth. The Pavement-Transportation Computer Assisted Structural Engineering (PCASE) software incorporates a more accurate numerical solution of the ModBerg equation, which in some instances provides slightly different values than the manual solution described in the UFC. Researchers from the U.S. Army Engineer Research and Development Center (ERDC) realized the need to explain why the same procedure results in different values of the frost depth, and sought to reaffirm the importance of advanced numerical tools in pavement design and evaluation. The objective of this report is to present the solution of the heat equation applied to a one-dimensional homogeneous and isotropic layer, which is currently implemented in the PCASE software. The report also explains the differences between the UFC- and PCASE-computed solutions. The original document contains color images. |
author2 |
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB |
format |
Text |
author |
Bianchini, Alessandra Gonzalez, Carlos R |
author_facet |
Bianchini, Alessandra Gonzalez, Carlos R |
author_sort |
Bianchini, Alessandra |
title |
Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
title_short |
Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
title_full |
Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
title_fullStr |
Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
title_full_unstemmed |
Pavement-Transportation Computer Assisted Structural Engineering (PCASE) Implementation of the Modified Berggren (ModBerg) Equation for Computing the Frost Penetration Depth within Pavement Structures |
title_sort |
pavement-transportation computer assisted structural engineering (pcase) implementation of the modified berggren (modberg) equation for computing the frost penetration depth within pavement structures |
publishDate |
2012 |
url |
http://www.dtic.mil/docs/citations/ADA559915 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA559915 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA559915 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766028174036041728 |