This book describes the geotechnical design, installation and application of helical anchors and piles in soils to civil engineering practice. A number of design examples and parametric analyses are presented illustrating the procedures for determining the ultimate axial tension and compression capacity of single-helix and multi-helix anchors and piles in clay and sand, illustrating basic design methods. Methods of installation are described and recommendations for installation monitoring are given. The behavior of groups of helical anchor and piles is also described. Examples of the use of helical anchors and piles for a wide range of applications in civil engineering construction are presented. Methods of load testing and interpretation of load test results are described. Examples are also given for calculating side resistance of steel and grouted central shafts.
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Alan J. Lutenegger is an Emeritus Professor of Civil and Environmental Engineering at the University of Massachusetts-Amherst where he has been on the faculty since 1989. He received his B.S. degree in Construction Engineering in 1975 from Iowa State University and his M.S. (1977) and Ph.D. (1979) degrees in Geotechnical Engineering, also from Iowa State University. He is a registered professional engineer and a Fellow of the American Society of Civil Engineers. He has authored or coauthored over 170 technical papers related to Geotechnical Engineering and advised 53 graduate students in his 36 years as a faculty member.
He is the author of Soils and Geotechnology in Construction, In Situ Testing Methods in Geotechnical Engineering and Laboratory Manual for Geotechnical Characterization of Fine-Grained Soils, published by CRC Press. Over the past 20 years, his research work has largely focused on the design and behavior of Helical Anchors and Piles. He has been involved with the design, installation and testing of helical anchors and piles and has performed or supervised over 800 full-scale field load tests. He recently completed Design, Installation and Applications of Helical Anchors and Piles in press by Taylor & Francis, Publishers.