Predicting the Ultimate Bearing Capacity of Bolts with an Optimized Function Model

Table 17

Model parameters for example 4.

Bolt	AH	CH	IE	IEPF
D1	a = −292.1	a = 23.4	a = 3.73 × 10−2	a = −10.93
D2	b = 82.4	b = −3.7	k = −0.54	b = −0.03
	a = −114.6	c = −66.3	a = 6.27 × 10^−2	c = 1.95
	b = 50.3	a = 27.2	k = 0.15	k = -32.08
		b = 49.5		a = 0.19
		c = −9.6		b = 3.39 × 10^−2
				c = −1.72
				k = 45.99