Dynamic Stability Discrimination Method for Concrete Dam under Complex Geological Conditions

Table 3

Catastrophe discrimination results of the points at the dam toe and heel with different reduction coefficients.

Reduction coefficient	Key points	u		Δ	Result of catastrophe discrimination
2.2	Dam heel	−0.183078066	−0.0333325	0.005453211	Noncatastrophe
	Dam toe	−0.490153037	−0.1431487	0.082235031	Noncatastrophe
2.4	Dam heel	−0.082455007	−0.0122254	0.001793047	Noncatastrophe
	Dam toe	−0.339602824	−0.0862048	0.043978566	Noncatastrophe
2.6	Dam heel	−0.093978032	0.00895964	−0.001152577	Catastrophe
	Dam toe	−0.160788464	−0.0219337	−0.003638031	Catastrophe
2.8	Dam heel	−0.209970046	−0.0229496	−0.022807694	Catastrophe
	Dam toe	−0.214829545	−0.0217247	−0.026916081	Catastrophe
3.0	Dam heel	−0.118377439	−0.0031959	−0.006359630	Catastrophe
	Dam toe	−0.146569898	−0.0122332	−0.008554322	Catastrophe
3.2	Dam heel	−0.185233084	−0.0167385	−0.017857578	Catastrophe
	Dam toe	−0.19446602	−0.0162687	−0.022270416	Catastrophe