Parameters Optimization of Curtain Grouting Reinforcement Cycle in Yonglian Tunnel and Its Application

Table 7

Sizes of slurry veins.

Region	Label	Width (mm)	Classes
1	Vein-1	13	Secondary
	Vein-2	122	Primary
	Vein-3	9	Secondary
	Vein-4	11	Secondary
	Vein-5	460	Primary
	Vein-6	14	Secondary
	Vein-7	27	Secondary
	Vein-8	12	Secondary
2	Vein-1	8	Secondary
	Vein-2	9	Secondary
	Vein-3	17	Secondary
	Vein-4	33	Secondary
	Vein-5	62	Primary
	Vein-6	26	Secondary
	Vein-7	15	Secondary
	Vein-8	23	Secondary