The Stabilization of Concrete Dams by Post-Tensioned Rock Anchorages: The State of American Practice

by Donald A. Bruce, Nicholson Construction of America, Bridgeville, United States,



Abstract: Permanent post-tensioned rock anchorages have been used for over twenty years in America to stabilize existing concrete dams and their appurtenant structures. This paper provides a state of practice review focusing particularly on construction, corrosion protection and performance. Aspects of design are also addressed. Two areas requiring national attention, namely attitudes towards corrosion protection, and long term performance monitoring, are highlighted.

Subject Headings: Concrete dams | Reinforced concrete | Anchorages | Corrosion | Tension | Rocks | Earthfill dams | Concrete structures

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