Table 1.
Cracking characteristics and reinforcement measures of the numbers 1 and 2 reservoir emptying outlets in the Goupitan arch dam.
| Outlets | Series number | Cracking depth (m) | Cracking description | Reinforcement measures | |
|---|---|---|---|---|---|
| Max | Min | ||||
| Number 1 reservoir emptying bottom outlet | Crack series number 1 | 0.3 | 0.3 | Deck of the number 13 dam monolith at EL 491 m | Groove in cracking surface Fill in cracks using preshrinkage mortar Embed grouting pipe system Drill stress release hole Install double-layer crack-limiting steel bar |
| Crack series number 2 | From EL 494 m to EL 488 m along the number 13 dam monolith | ||||
| Crack series number 3 | 1.1 | 0.7 | Deck of the number 14 dam monolith at EL 497 m | ||
| Number 2 reservoir emptying bottom outlet | Crack series number 1 | 1.5 | 0.3 | Deck of the number 14 dam monolith at EL 497 m | |
| Crack series number 2 | From EL 494 m to EL 488 along the number 13 dam monolith | ||||
| Crack series number 3 | 1.7 | 0.3 | Deck of the number 15 dam monolith at EL 490 m | ||
| Deck of the number 15 dam monolith at EL 494 m | |||||