Foundation and Abutment Treatment for Rockfill Dams

by Richard C. Acker, Dept. Head; Geologist, Harza Engrg. Co., Chicago, IL,
Jack C. Jones, Head; Foundations, Soil Mech. and Geology Div., Harza Engrg. Co., Chicago, IL,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1972, Vol. 98, Issue 10, Pg. 995-1015

Document Type: Journal Paper


The general practice of Harza Engineering Company for treating the abutments and foundations of high rockfill dams is considered in general and in detail through case histories of the Ambuklao, Derbendi Kahn, Angat and Guri Dam projects. It is shown how the site geology, type and extent of rock defects, and degree and extent of weathering influence greatly the embankment cross section and axis location, excavation required, surface treatment and grouting patterns. The treatments required for each project are considered and, through the use of field observations, it is shown that the treatments employed have been successful and that the dams are performing satisfactorily.

Subject Headings: Dam foundations | Rockfill dams | Rock fills | Earthfill dams | Case studies | Engineering firms | Engineering history | Rocks

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