Treatment of the dam foundationFault handlingThe method of backfilling concrete plug and reinforcing consolidation grouting in general excavated groove with width of fault fracture zone no less than 50cm; For faults with large scale (width greater than 50cm) and poor character, the treatment of trench excavation, backfilling concrete, anchoring bars and reinforced consolidation grouting should be adopted. The depth of the trough is 1 to 1.5 times the width of the fault.