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Table 3: Length, pressure and method of high pressure grouting

Hole depth (m) 0.0 ~ 2.0 2.0 ~ 6.5 (8.0)
Length to grout (m) 2.0 4.5 (6.0)
Grout pressure (MPa) 2.0 ~ 4.0 5.0 ~ 6.0
Grouting method Pure pressure Cycle inside the hole