Safety Monitoring Index of High Concrete Gravity Dam Based on Failure Mechanism of Instability

Table 3

Monitoring indexes of dam stream displacement (unit: mm).

Elevation	Dam instability safety monitoring indexes
	Grade one	Grade two	Grade three
1424 m	26.06	76.16	399.61
1359 m	18.89	44.86	213.60
1320 m	12.79	25.68	102.83
1292 m	7.00	12.43	45.26