Advances in Materials Science and Engineering

Research Article

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

Table 3

Types of fissures filled with water.
Type of fissureIIIIIIIVVVI
Water yield<10 m3/h10–20 m3/h20–30 m3/h30–40 m3/h40–50 m3/h>50 m3/h