Grouting Mechanism of Cement-Based Slurry in a Concentric Annulus under High Groundwater Pressure

Figure 7

The calculation results for the pressure control injection mode. (a) Variation in penetration length and grouting flow rate with injection time. (b) Viscosity distribution along penetration length. (c) Overpressure distribution in grouted zone for the CSG at three grouting times, 15, 35, and 55 s. (d) Overpressure distribution in grouted zone for the CG at three grouting times, 15, 35, and 55 s.

(a)

(b)

(c)

(d)