Geotechnical Study and Alternatives Analysis for an LNG Storage Tank in Fairbanks, Alaska
Since 2012, site geotechnical studies have been performed for the development of an LNG storage tank in Fairbanks including the design of several foundation alternatives. The geotechnical effort was phased and included subsurface studies of several potential tank locations and at the existing LNG facility, observations related to prior construction impacts on warm permafrost soils, and shear wave velocity profiling for seismic hazard analyses. In addition to the subsurface studies, a scaled pile load test was performed to better understand the potential pile performance in warm permafrost for a heavily loaded structure. LNG storage tanks are designed to maintain internal temperatures of -160°C, and heaters are installed in thawed soil to avoid the development of permafrost below the LNG storage tanks. Typically, large LNG storage tanks on permafrost soils have been supported on deep foundations with elevated pile caps to provide separation between the storage tanks and ground to avoid aggrading permafrost and associated basal frost heave below the tanks. Because of the seismic demand at the site, a foundation system with a thermal break became very expensive. Several alternatives were considered to maintain permafrost at the site.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784482599
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Supplemental Notes:
- © 2019 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Thornley, J D
- Daggett, A P
- Musial, M R
- Krzewinski, T G
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Conference:
- 18th International Conference on Cold Regions Engineering and 8th Canadian Permafrost Conference
- Location: Quebec City Quebec, Canada
- Date: 2019-8-18 to 2019-8-22
- Publication Date: 2019-8
Language
- English
Media Info
- Media Type: Web
- Pagination: pp 475-482
- Monograph Title: Cold Regions Engineering 2019
Subject/Index Terms
- TRT Terms: Earthquake resistant design; Frigid regions; Geotechnical engineering; Liquefied natural gas; Permafrost; Pile foundations; Seismicity; Storage tanks
- Geographic Terms: Fairbanks (Alaska)
- Subject Areas: Design; Energy; Geotechnology; Transportation (General);
Filing Info
- Accession Number: 01728528
- Record Type: Publication
- ISBN: 9780784482599
- Files: TRIS, ASCE
- Created Date: Jan 28 2020 9:46AM