Investigation of Multiple Hole Grouting for Reducing Water Inrush Risk in Underground Engineering

Table 8

Type V fissure.

Aquifer	Water exit points	Total volume of injected grout (t)	Volume of injected grout into one borehole (t)
L8	6	435.0	72.5
L10	14	526.0	43.8
L11	2	58.0	29
Total	22	1019	145.3