Experimental Investigation of the Seepage-Induced Failure Process in Granular Soils

Table 2

Granular soils in the seepage process failure with hydraulic and model-specific parameters.

Soil type	Soil numbers	Initial gradient	Critical gradient	Failure gradient	Leakage time (min)	Failure time (h)
Natural sandy gravels	A	0.08	0.23	0.29	35	5.5
	B	0.18	0.44	0.51	38	6.0
	C	0.17	0.39	0.48	30	5.0
	D	0.13	0.22	0.32	32	6.5
	E	0.10	0.36	0.43	36	7.0
Natural fine-grained sands	F	0.21	0.68	0.77	92	2.5
	G	0.18	0.57	0.66	80	2.0
	H	0.24	0.51	0.60	85	2.0
	I	0.26	0.82	0.87	78	3.0
Laboratory-made sandy gravels	1	0.15	0.22	0.46	40	6.5
	2	0.19	0.47	0.57	25	6.0