This paper describes the third major goal of Phase 1 of a National Research Program dealing with rock anchors for North American dams. Since 1974, there have been 5 successive versions of the “Recommendations” for ground anchor practice which have each effectively acted as a national standard. An analysis is provided which illustrates the evolution of theory and practice with time, with particular reference to the philosophies and details of corrosion protection.

  • Introduction

  • General Statement

  • Detailed Comparison by Technical Topic

  • The Issue of Corrosion Protection

  • Final Observations

  • Acknowledgements

  • References

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