Experimental Study on Grouting and Flow Characteristics of Rough Vertical Fractures

Table 2

Velocity of water and grout in different JRC regions on the flow path.

Section serial number		1	2	3	4	5	6
Cross-sectional velocity (cm/s)	Water	8.96	231.357	81.775	61.475	38.103	16.575
	Grout	11.109	199.332	67.253	53.145	31.769	15.154
Cross-sectional area JRC		1.32	6.42	3.667	3.392	3.061	1.85