Pullout Characteristics of Geosynthetics Reinforced Earth Using Multilayer Spreading Pullout Test

Table 6

Pullout parameters according to pullout test in sand.

Pullout paramete rs	Type-A		Type-B
	Single-layer	Multilayer	Single-layer	Multilayer
Pullout friction angle (°)	24.37	23.51	18.47	17.17