Chapter
Mar 30, 2017
Non-Destructive Testing of Drilled Foundations at Cove Point Using Thermal Integrity Profiling
Authors: James P. McDermott [email protected], Justin T. Zarrella [email protected], and Seth H. Hamblin [email protected]Author Affiliations
Publication: Geotechnical Frontiers 2017
Abstract
The Dominion Cove Point LNG Terminal, located in Lusby, Maryland, recently began a $3.8 billion-dollar terminal upgrade to expand capacity and facilitate export capabilities. Given the soil conditions, strict vibration thresholds, and site logistics at the active LNG facility, Dominion and the IHI-Kiewit Cove Point JV selected drilled, cast-in-place elements as the primary foundation type to support temporary/permanent structures. Over 4,750 Auger cast-in-place piles and 700 drilled shafts were installed. Due to the sensitivity of the proposed structures, extensive non-destructive integrity testing (NDT) was required. The initial quality control program included pile echo testing and cross-hole sonic logging (CSL). However, due to site specific limitations, alternative NDT methods were required. Thermal integrity profiling was ultimately selected and the results of large-scale testing highlight this new technology as a highly effective and cost-efficient method of testing drilled, cast-in-place foundations.
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© 2017 American Society of Civil Engineers.
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Published online: Mar 30, 2017
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GZA GeoEnvironmental, Inc., Norwood, MA 02062. E-mail: [email protected]
GZA GeoEnvironmental, Inc., Norwood, MA 02062. E-mail: [email protected]
P.E.
GZA GeoEnvironmental, Inc., Norwood, MA 02062. E-mail: [email protected]
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