Technical

Research Papers

research paper thumbnail Antunes, P. J., Huag, M. D., Osicki, R. S., LePoudre, D. C., and Widger, R. A. Application of air launched nails as an innovative remediation technology to a landslide on the Saskatchewan Highway Network.
A Soil Nail Launcher repair to a slide in Saskatchewan, Canada, is described. Authors conclude that the technique is both innovative and effective.
research paper thumbnail Beekman, A. and Mallner, A. Fiberglass nail pullout capacity for rapid landslide remediation (EFRI 05/A03). Terre Haute, Indiana: Rose-Hulman Institute of Technology: Engineering Forensics Research Institute, July 2005.
Laboratory and field tests evaluate the pullout capacity of fiberglass nails as compared to steel and find that fiberglass performs as well or better.
research paper thumbnail The Forest Service – U.S. Department of Agriculture, “Appendix A—Simplified wedge design analysis method for soil nails” in Application guide for launched soil nails (EM 7170-12A). Washington DC: The Forest Service – U.S. Dept of Agriculture, 1994.
Design nomograms and charts from which the number of nails required to adequately strengthen a slipping embankment may be determined.
research paper thumbnail Hall, G. J. “The joint use of ballistic soil nailing and reinforced soil in Huddersfield” in The practice of soil reinforcing in Europe. London: Thomas Telford, 1995, pp. 227 – 240.
This article describes the use of Launched Soil Nails for the Alfred McAlpine Stadium. The article shows the time and cost savings of Launched Soil Nails.
research paper thumbnail Myles, B. “A rapid technique for nailing slopes” in The practice of soil reinforcing in Europe. London: Thomas Telford, 1995, pp. 241 – 252.
Launched Soil Nails solve the problems of high costs, time intensiveness, and in-process stability concerns of more traditional stabilization techniques.
research paper thumbnail O’Sullivan, A. and Murray, G. “Aspects for consideration in the design of reinforced earth structures” in New Zealand Goemechanics News.
International partner company Hiway Stablizers advocates finite element analyses as a better way to evaluate the behavior and stability of designs for reinforced soil structures.
research paper thumbnail O’Sullivan, A., Quickfall, G., and I. Kett. “Launched soil nails: Successful development within the New Zealand market” in Common Ground Proceedings. Australia New Zealand Conference on GeoMechanics, Date, Brisbane, Australia, 2007, pp.686 – 691.
Four case studies from New Zealand are presented to illustrate the range of applications for the Soil Nail Launcher.
research paper thumbnail Steward, J. E. “Launched soil nails: A new technology for stabilizing failing road shoulders” (Appendix 6.7) in Slope stability reference guide for national forests in the United States: Volume 3 (EM-710-13). Washington, DC: The Forest Service – U.S. Department of Agriculture, August 1994, pp. 1064 – 1091.
Launched Soil Nail methods and the science behind them are described and evaluated. The method is predicted to provide effective, rapid, and economic repairs.

 

Design Guidelines

Design Guidelines thumbnail The Forest Service – U.S. Department of Agriculture and The Federal Highway Administration – U.S. Department of Transportation, “Application guide for launched soil nails: Volume 1” in The Engineering management series (EM7170-12A or FHWA-FPL-93-003). Washington, DC: The Forest Service – U.S. Department of Agriculture, July 1994.
This project showed the use of launched soil nails for repair and reinforcement of unstable cut bank and embankment slopes. This was an opportunity for engineers, maintenance personnel, and contractors to explore the potential for launched soil nails. This guide furthers evaluation of launched soil nails as an alternative for road slope repair and maintenance methods. It is best used as a reference for road embankment and fill failures within the limits described in the design methodology section.
Design Guidelines thumbnail The Forest Service – U.S. Department of Agriculture and The Federal Highway Administration – U.S. Department of Transportation, “Project report for launched soil nails-1992 demonstration project: Volume 2” in The Engineering management series (EM7170-12B or FHWA-FPL-93-004). Washington, DC: The Forest Service – U.S. Department of Agriculture, July 1994.
This project report supports the Application Guide for Launched Soil Nails with additional information for recommendations contained in the application guide.
Design Guidelines thumbnail Wu, J. T. H., Lee, K. Z. Z., Helwany, S. B. and Ketchart, K. National Cooperative Highway Research Program (NCHRP) Report 556: Design and construction guidelines for geosynthetic-reinforced soil bridge abutments with a flexible facing. Washington, DC: The Transportation Research Board of the National Academies, 2006.
Sponsored by the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA). This report presents the findings of research undertaken to develop a rational design method and construction guidelines for using Geosynthetically Confined Soil (GCS) systems in bridge abutments. It may also be used to design retaining walls, rockfall barriers, and avalanche/debris flow deflection structures.
  Federal Highway Administration (FHWA) – GEOTECHNICAL ENGINEERING CIRCULAR NO. 7 – Soil Nail Walls, Publication # FHWA-IF-03-017, 2003
Analysis, design, and construction of soil nail walls in highway applications.