Overall Stability Analysis of Xiluodu High Arch Dam Based on Fine Three-Dimension Numerical Modeling

Table 7

Characteristic stress value of arch dam under special load combination (unit: MPa).

Working condition	Upstream surface		Downstream surface		Dam toe
	Minimum stress	Maximum stress	Minimum stress of dam surface	Left abutment maximum stress	Right abutment maximum stress	Maximum stress
Condition 13	−1.635 (▽332 m)	5.234 (▽470 m)	0.062 (▽560 m)	16.626 (▽375 m)	15.865 (▽375 m)	11.281
Condition 14	−0.053 (dam heel)	8.862 (▽500 m)	−0.953 (▽480 m)	14.831 (▽380 m)	14.529 (▽380 m)	10.319
Condition 15	0.392 (dam heel)	8.590 (▽500 m)	−1.092 (▽480 m)	14.962 (▽380 m)	14.689 (▽380 m)	9.993
Condition 16	−1.539 (▽345 m)	4.894 (▽440 m)	0	15.741 (▽380 m)	15.419 (▽380 m)	11.031