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https://hdl.handle.net/11681/38879Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Bjella, Kevin L. | - |
| dc.contributor.author | Shur, Yuri. | - |
| dc.contributor.author | Kanevskiy, Misha. | - |
| dc.contributor.author | Duvoy, Paul. | - |
| dc.contributor.author | Grunau, Bruno. | - |
| dc.contributor.author | Best, John. | - |
| dc.contributor.author | Bourne, Stephen. | - |
| dc.contributor.author | Affleck, Rosa T. | - |
| dc.date.accessioned | 2020-11-23T14:45:15Z | - |
| dc.date.available | 2020-11-23T14:45:15Z | - |
| dc.date.issued | 2020-09 | - |
| dc.identifier.govdoc | ERDC/CRREL TR-20-13 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/38879 | - |
| dc.identifier.uri | http://dx.doi.org/10.21079/11681/38879 | - |
| dc.description | Technical Report | - |
| dc.description.abstract | The U.S. Department of Defense (DoD) operates numerous Arctic and Subarctic installations, including Alaska. Changes to permafrost can threaten critical built infrastructure. It is critical to accurately characterize and compare site conditions in permafrost regions to enable the efficient, cost-effective design and construction of an infrastructure well suited to the permafrost environment and that meets DoD requirements. This report describes three research efforts to establish (1) field investigation approaches for ground ice detection and delineation, (2) methods and modeling for early warning detection of thawing permafrost under infrastructure, and (3) an outline of a decision support system that determines the most applicable foundation design for warming and degrading permafrost. Outcomes of these interrelated efforts address needs to improve construction of DoD mission critical infrastructure on Arctic and Subarctic permafrost terrains. Field investigation processes used systematic methodologies including borehole data and geophysical measurements to effectively characterize subsurface permafrost information. The Permafrost Foundation Decision Support System (PFFDSS) tool implements and logically links field survey information and foundation type assessments. The current version of PFFDSS is designed to be accessible to design-engineers of a broad range of experience, that will reduce the effort and cost, and improve the effectiveness of site assessment. | en_US |
| dc.description.sponsorship | Strategic Environmental Research and Development Program (U.S.) | en_US |
| dc.description.tableofcontents | Contents Abstract .......................................................................................................................................................... ii Figures and Tables ......................................................................................................................................... v Preface ......................................................................................................................................................... xiii Executive Summary ..................................................................................................................................... xv 1 Introduction ............................................................................................................................................ 1 1.1 Background ..................................................................................................................... 1 1.2 Importance ...................................................................................................................... 3 1.3 Objectives ........................................................................................................................ 4 1.4 Approach ......................................................................................................................... 5 1.5 Report outline ................................................................................................................. 7 2 Enhanced Site Characterization ........................................................................................................ 9 2.1 Site selection................................................................................................................. 10 2.2 Site characterization analysis ...................................................................................... 12 2.2.1 CCHRC site ......................................................................................................................... 12 2.2.1 Permafrost Tunnel (PT) site............................................................................................... 29 2.2.1 Farmers Loop (FL) site ...................................................................................................... 37 2.3 Geostatistics analysis ................................................................................................... 44 2.3.1 Background ........................................................................................................................ 44 2.3.2 Analysis approach ............................................................................................................. 47 2.3.3 Data processing ................................................................................................................. 49 2.3.4 Spatial dependence .......................................................................................................... 50 2.3.5 Model fitting process ......................................................................................................... 52 2.3.6 Permafrost model .............................................................................................................. 53 2.3.7 Soil type model .................................................................................................................. 56 2.3.8 Water content model ......................................................................................................... 56 2.3.9 QGIS.................................................................................................................................... 57 2.4 Discussion ..................................................................................................................... 64 2.4.1 Probability of permafrost maps ........................................................................................ 64 2.4.2 Probability of soil type and water content maps .............................................................. 73 2.5 Geostatistical analysis summary .................................................................................. 75 3 Foundation Alternatives Investigation ............................................................................................ 78 3.1 Objectives ...................................................................................................................... 78 3.2 Background ................................................................................................................... 79 3.2.1 General design approach .................................................................................................. 81 3.2.2 Thermal modeling .............................................................................................................. 82 3.3 CCHRC foundations: Designs and thermal monitoring ............................................... 84 3.3.1 CCHRC—RTF ....................................................................................................................... 84 3.3.2 Sustainable Village at UAF ................................................................................................ 91 3.4 Early Warning Detection System (EWDS) .................................................................. 102 3.4.1 EWDS evaluation and processes .................................................................................... 103 3.4.2 Data acquisition for EWDS .............................................................................................. 106 3.4.3 When to act ...................................................................................................................... 109 4 Permafrost Foundation Decision Support System (PFFDSS) .................................................. 111 4.1 Overview ...................................................................................................................... 111 4.2 PFFDSS technological design..................................................................................... 113 4.2.1 Desktop assessment process ......................................................................................... 113 4.2.2 Field assessment process ............................................................................................... 117 4.2.3 Foundation type risk and cost assessment process ..................................................... 124 4.3 Current implementation (2017) .................................................................................128 5 Conclusions, Recommendations, and Future Work .................................................................. 130 5.1 Conclusions ................................................................................................................. 130 5.1.1 Site characterization ....................................................................................................... 130 5.1.2 Foundations ..................................................................................................................... 131 5.1.3 Decision support system ................................................................................................. 132 5.2 Lessons learned.......................................................................................................... 133 5.3 Recommendations for future efforts ......................................................................... 133 References ................................................................................................................................................ 135 Acronyms and Abbreviations ................................................................................................................. 139 Appendix A: Cryostratigraphic Classification of CCHRC Cores from Transect 3 Boreholes ........................................................................................................................................... 141 Appendix B: Review of Russian Literature .......................................................................................... 156 Appendix C: PFFDSS Model Design Diagram ................................................................................... 176 Report Documentation Page (SF 298) ................................................................................................ 192 | - |
| dc.format.extent | 220 pages / 24.42 MB | - |
| dc.format.medium | PDF/A | - |
| dc.language.iso | en_US | en_US |
| dc.publisher | Cold Regions Research and Engineering Laboratory (U.S.) | en_US |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation.ispartofseries | Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CRREL TR-20-13 | - |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Frozen ground--Thawing | en_US |
| dc.subject | Permafrost--Thawing | en_US |
| dc.subject | Cold regions--Climatic changes | en_US |
| dc.subject | Foundations--Cold weather conditions | en_US |
| dc.subject | Foundations--Design and construction | en_US |
| dc.title | Improving design methodologies and assessment tools for building on permafrost in a warming climate | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-CRREL TR-20-13.pdf | 24.42 MB | Adobe PDF |  View/Open |