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Publication No. FHWA-IF-99-015

JUNE 1999

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OFFICE OF BRIDGE TECHNOLOGY 400 SEVENTH STREET, SW WASHINGTON, DC 20590

GEOTECHNICAL ENGINEERING CIRCULAR NO. 4

GROUND ANCHORS AND ANCHORED SYSTEMS
ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULARNO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICALENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULARNO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4• GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4• GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 • GEOTECHNICALTechnical Report Documentation Page
1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No.

FHWA-IF-99-015
4. Title and Subtitle 4. Report Date

June 1999 GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 Ground Anchors and Anchored Systems
7. Author(s) 6. Performing Organization Code:

8. Performing Organization Report No. 10. Work Unit No.(TRAIS)

P.J. Sabatini, D.G. Pass, R.C.Bachus
9. Performing Organization Name and Address

GeoSyntec Consultants 1100 Lake Hearn Drive Atlanta, Georgia
12. Sponsoring Agency Name and Address

11. Contract or Grant No.

DTFH61-94-C-00099
13 Type of Report and Period Covered

Office of Bridge Technology Federal Highway Administration HIBT, Room 3203 400 Seventh Street, S.W. Washington D.C. 20590
15. Supplementary NotesTechnical Manual
14. Sponsoring Agency Code

Contracting Officer’s Technical Representative: Chien-Tan Chang (HIBT) FHWA Technical Consultants: Jerry DiMaggio (HIBT), Richard Cheney (HIBT)
16. Abstract:

This document presents state-of-the-practice information on the design and installation of cementgrouted ground anchors and anchored systems for highway applications. The anchored systemsdiscussed include flexible anchored walls, slopes supported using ground anchors, landslide stabilization systems, and structures that incorporate tiedown anchors. This document draws extensively from the FHWA-DP-68-IR (1988) design manual in describing issues such as subsurface investigation and laboratory testing, basic anchoring principles, ground anchor load testing, and inspection of constructionmaterials and methods used for anchored systems. This document provides detailed information on design analyses for ground anchored systems. Topics discussed include selection of design earth pressures, ground anchor design, design of corrosion protection system for ground anchors, design of wall components to resist lateral and vertical loads, evaluation of overall anchored system stability, andseismic design of anchored systems. Also included in the document are two detailed design examples and technical specifications for ground anchors and for anchored walls.
17. Key Words
18. Distribution Statement

No Restrictions. This document is available to the Ground anchors, soldier beam and lagging public from the National Technical Information walls, limit equilibrium, earth pressures,...