Shear Behaviors of the Intersurface between Rice Straw Rope and Dredger Fill Silt: Experimental and Mechanism Studies

Table 4

Interfacial friction coefficient under different normal stresses.

Normal stress (kPa)	Friction coefficient c (kPa)
	5	10	20	40	60
20	0.22	0.16	0.15	0.13	0.17
40	0.18	0.16	0.13	0.1	0.11
60	0.14	0.13	0.13	0.08	0.1
80	0.13	0.13	0.13	0.09	0.1