What is the importance of monitoring and controlling slurry viscosity in Slurry TBM operations?

Monitoring and controlling slurry viscosity is crucial in Slurry TBM operations because viscosity directly affects several key aspects of the excavation process. Proper viscosity is essential for maintaining face stability. The slurry's viscosity influences its ability to form a stable filter cake on the excavation face, which prevents groundwater inflow and supports the soil. If the viscosity is too low, the filter cake may be too thin and permeable, leading to face instability. If the viscosity is too high, it can be difficult to pump....