In Situ Test of Grouting Reinforcement for Water-Enriched Sandy Gravel Ground in River Floodplain

Table 3

Grouting overview for 3 groups.

Group	Control principles	Specified injection criteria	Hole number	Volume of each hole (m^3)
Peripheral group A	Constant grout volume	280 L/section	24	15.3
Peripheral group B	Constant grout volume or pressure	200 L/section or 0.8 MPa	44	9.6
Inner group	Fixed end pressure	2 MPa	17	18.0