Rockfill Compression Tests and Other Aspects of the Design of Miel I Dam

by Juan E. Pineros,

Document Type: Proceeding Paper

Part of: Concrete Face Rockfill Dams—Design, Construction, and Performance


The Miel I Dam, a high concrete face rockfill dam, is one of the main structures designed for the Miel I Hydroelectric Project in Colombia. Selection of dam type was based on technical and economical considerations. The height was determined on the basis of precedence of existing dams. The study of rockfill quarries included series of tests in a large size oedometer to compare the behavior of the different rock types available. The evaluation of tests indicated the convenience to include alternative quarries upstream and downstream from the damsite, with two different diversion schemes. The presence of weathered zones in the upper part of the abutments and the steep natural slopes, favored the design of an inclined plinth to be founded on groutable rock.

Subject Headings: Compression tests | Concrete dams | Rockfill dams | Rock fills | Earthfill dams | Rivers and streams | Concrete structures | Structural design | Colombia | South America

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