Relationship between the Shear Strength and the Depth of Cone Penetration in Fall Cone Tests

Table 1

Comparison of calculated and experimental values of K.

		K(experimental mean values)						Calculated values of K (equation (13))	Calculated values of K (equation (16))
		Class 1	Class 2	Class 3	Class 4	Class 5	Class 6
Soil classification		Sample no. 78 bentonite	Sample no. 81 postglacial clay	Sample no. 79 kaolin	Sample no. 90 kaolin	Sample no. 80 coarse silt with some organic matter	Sample no. 84 mud
α (°)	30	0.89	0.76	0.79	0.83	0.70	0.74	1.04	1.11
	—	—	0.86	0.79	0.89	—	—	—	—
	45	—	0.46	0.43	0.57	—	—	0.57	0.66
	60	0.28	0.27	0.28	0.33	0.33	0.26	0.33	0.41
	—	—	0.27	0.26	0.34	—	—	—	—
	75	—	0.16	0.17	0.23	—	—	0.19	0.26

Note. The experimental mean values of K are collected by Karlsson and Wood [15, 25].