Effects of Groove Feature on Shear Behavior of Steel-Sand Interface

Table 5

Interface pear shear stress of the mathematical model and test (kPa).

Interface	Normal stress (kPa)	τf	τu	τm	τu/τf	τm/τf	τu/τm
Int-A	50	21.11	20.76	20.20	0.98	0.96	1.03
	100	41.74	41.92	40.65	1.00	0.97	1.03
	150	66.34	68.00	65.23	1.03	0.98	1.04
	200	82.84	84.54	81.18	1.02	0.98	1.04
Int-D (0°)	50	24.28	22.59	22.12	0.93	0.91	1.02
	100	47.77	46.59	45.25	0.98	0.95	1.03
	150	73.16	72.67	70.19	0.99	0.96	1.04
	200	96.01	95.56	92.22	1.00	0.96	1.04
Int-D (45°)	50	26.34	24.51	23.90	0.93	0.91	1.03
	100	53.48	51.47	49.91	0.96	0.93	1.03
	150	78.56	76.63	74.33	0.98	0.95	1.03
	200	100.46	100.20	96.38	1.00	0.96	1.04
Int-D (90°)	50	29.36	26.52	25.91	0.90	0.88	1.02
	100	59.51	57.46	55.72	0.97	0.94	1.03
	150	83.48	83.65	80.85	1.00	0.97	1.03
	200	104.74	104.78	100.60	1.00	0.96	1.04