Abstract

Abstract

Evaluating grout curtains below dams is a difficult task for both geologists and geotechnical engineers because of the nature of the work: problems of the site are obscured and grouting treatment is based, beyond knowledge of the site conditions, on both chance and intuition. The resulting effectiveness of grouting works is in many instances established and confirmed only after the first impounding, when the integrity of the grout curtain can be quantified by leakage measurements, monitoring of piezometers, etc. At Messochora dam, the highest concrete-faced rockfill dam in Greece, remedial treatment and maintenance grouting would be difficult after impounding and therefore, to reduce uncertainty and risks, an effort is made to analyse the adequacy of grouting works before reservoir filling.

You do not currently have access to this article.