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ROCK ANCHORS FOR DAMS: EVOLUTION AND …

ROCK ANCHORS FOR dams : EVOLUTION AND ANALYSIS OF corrosion protection SYSTEMS AND construction COSTS Dr. Donald A. Bruce1 and John S. Wolfhope2 Abstract In recent ASDSO conferences, the authors have presented the results of Phase 1 of the National Research Program into prestressed rock ANCHORS for dams . This paper specially addresses two key issues which the authors observe are of prime interest to engineers considering dam remediation using prestressed ANCHORS , namely corrosion protection (and, hence, anticipated longevity) and project costs. The conclusions are drawn from a study of over 400 case histories and 230 technical papers which have been collected on North American practice in the course of the Phase 1 studies. 1. Introduction Two of the most commonly asked questions when contemplating a dam anchoring project are: How long will the ANCHORS last? and How much do they cost? As is well known to members of the Association of State Dam Safety Officials through previous related papers ( , Bruce and Wolfhope 2005, and 2006), the authors have compiled a database of over 400 dam anchor projects completed in North America from 1968 to 2004.

ROCK ANCHORS FOR DAMS: EVOLUTION AND ANALYSIS OF CORROSION PROTECTION SYSTEMS AND CONSTRUCTION COSTS Dr. Donald A. Bruce1 and John S. Wolfhope2 Abstract In recent ASDSO conferences, the authors have presented the results of Phase 1 of the

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  System, Protection, Construction, Corrosion, Rocks, Evolution, Anchor, Dams, Rock anchors for dams, Corrosion protection systems and construction

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