Corrosion Protection Options for Permanent Ground Anchorages

The subject of appropriate corrosion protection for permanent ground anchorages can appear daunting to an engineer faced with a new anchorage design for the first time. There are at least ten different methods of corrosion protection available, not all of them applicable to permanent anchorages.

Defining the appropriate materials or methods which constitute an acceptable physical barrier for corrosion protection, in accordance with the codes of practice, is one of the most important subjects within ground anchorage practice. This paper aims to clarify the subject by briefly describing the current methods available, redefining terms that have been confused or misused and highlighting some practical issues in implementation.

• Introduction

• Classification of Installation (Ground Anchorage, Mini Pile, Soil Nail)

• Common Corrosion Protection Methods

• Critical Areas of Anchorages Requiring Protection

• Practical Issues on Site

• Conclusion