RESEARCH ON ACCEPTANCE CRITERIA OF CONSOLIDATION GROUTING FOR DAM FOUNDATION OF HIGH GRAVITY DAM

The acceptance criteria of consolidation grouting for high gravity dam foundation is directly related to the stability and security of dam. Each project acceptance criteria has particularity. For the different request of high gravity dam to various types of foundations, taking the actual situation of consolidation grouting for GuanDi hydropower station dam foundation as example and combining with the acceptance criteria of existing engineering dam foundation consolidation grouting, this paper proposes that the acceptance criteria of consolidation grouting for high gravity dam foundation should take acoustic velocity of sound wave as criterion, consider the effect of various rock types and excavation blasting. The acceptance criteria of consolidation grouting for high gravity dam foundation is formed and successfully applied in GuanDi hydropower station project. It may be referenced for other project.