Comparison of Uplift Capacity and Nonlinear Failure Surfaces of Single-Belled Anchor in Homogeneous and Layered Sand Deposits

Table 6

Comparison of the observed breakout factor and predicted breakout factor by using models (18) to (21).

Comparison of Nu.(obs.45°) and Nu.(pre.45°) by using model (18)
Source	L/Db	Ds/Db		a	Nu.(obs.45°)	Nu.(pre.45°)	Errors (%)
Present study	3	0.33		1.00	4.37	4.21	+03.72
	4	0.46		0.75	5.75	6.07	−05.61
	4	0.28		0.46	7.47	7.69	+02.88
	5	0.38		1.00	6.97	7.34	−05.28
Bera and Banerjee [6]	3	0.4		1.00	3.43	3.91	−14.11
Comparison of Nu.(obs.63°) and Nu.(pre.63°) by using model (19)
Source	L/Db	Ds/Db		a	Nu.(obs.63°)	Nu.(pre.63°)	Errors (%)
Present study	5	0.46		1.00	5.98	6.18	−03.33
	4	0.38		1.00	5.53	5.07	+08.35
	3	0.33		0.70	4.21	4.71	−11.87
	4	0.28		0.46	6.80	7.13	−04.90
Comparison of Nu.(obs.72°) and Nu.(pre.72°) by using model (20)
Source	L/Db	Ds/Db		a	Nu.(obs.72°)	Nu.(pre.72°)	Errors (%)
Present study	3	0.38		1.00	3.19	2.97	+06.77
	4	0.28		1.00	4.64	4.41	+04.87
	5	0.46		0.60	5.73	6.00	−04.75
	5	0.33		0.42	6.67	6.78	−01.35
Comparison of Nu.(obs.45°,63°,72°) and Nu.(pre.45°,63°,72°) by using model (21)
Source	L/Db	Ds/Db	β	a	Nu.(obs.45°,63°,72°)	Nu.(pre.45°,63°,72°)	Errors (%)
Present study	3	0.33	45	1.00	4.37	4.48	−02.41
	4	0.46	45	0.75	5.75	6.11	−06.30
	4	0.38	63	1.00	5.53	4.64	+16.01
	3	0.33	63	0.70	4.21	4.21	+00.04
	4	0.28	72	1.00	4.64	4.47	+03.74
	5	0.46	72	0.60	5.73	6.33	−10.45