| Level of importance for each parameter | ||||||
| No importance | Low importance | Normal importance | High importance | Very high importance | ||
| Characteristics of the injecting device | Water pressure | |||||
| Air pressure | ||||||
| Grout pressure | ||||||
| Lifting velocity of injecting rod | ||||||
| Rotation velocity of injecting rod | ||||||
| Grout specific gravity | ||||||
| Characteristics of the injected ground | Soil particle cohesion | |||||
| Soil permeability coefficient | ||||||
| Soil permittivity coefficient (Cg) | ||||||
| Injectability ratio (GR) | ||||||