Performance of Helical Disk Ground Anchors for Anchorage of Manufactured Housing
Publication: Journal of Architectural Engineering
Volume 17, Issue 4
Abstract
The performance of conventional (helical disk) ground anchors is important to the overall quality and safety of manufactured home installations and other applications requiring anchorage to ground. This paper presents findings from an investigation of the performance of conventional ground anchors and soil index test methods in a variety of soil conditions by using a range of ground anchor types, sizes, and assemblies. The results and conclusions address variation in soil classification methods, correlation of soil index test methods to anchor performance, predictability of conventional ground anchor assembly performance, and factors affecting reliability or repeatability of test methodology. Recommendations are given to improve a proposed ground anchor test protocol and to further address significant research needs, such as the effect of seasonal variation in ground moisture on soil index tests and ground anchor performance.
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Acknowledgments
The team that worked on this research includes William Zoeller, Ric Guilbert, Miguel Bencosme, and Steven Winter of Steven Winter Associates; Jay Crandell of ARES Consulting; and Mark Nowak of Newport Partners, LLC. Significant contributions were also provided by staff at the U.S. Department of Housing and Urban Development, particularly Mike Blanford, Rick Mendlen, and William Matchneer. The writers are especially indebted to the anchor manufacturers and others who assisted with this project, including the participants at the Georgia test site: Bob Prophet, David Low, James Zuehlke, Andy Oliphant, Scott Moreno, Jon Lower, Knute Chauncey, and John Overmier.
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© 2011 American Society of Civil Engineers.
History
Received: Nov 3, 2009
Accepted: Jun 8, 2011
Published online: Nov 15, 2011
Published in print: Dec 1, 2011
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