Slurry pressurized balanced shield

The slurry pressurized balanced shield means that a partition is set in front of mechanical shield to form a slurry compartment between the partition and the cutterhead. The stability of excavation face is achieved in this way: feed mud into the slurry compartment, form a waterproof mud film with mud on the excavation face, and maintain water pressure by the tension of mud film to balance soil pressure and water pressure on the excavation face. The soil and sand excavated are transported to the ground in the form of mud and are separated by slurry treatment equipment. The separated slurry is adjusted in specific gravity and then transported to the excavation face. KD series slurry separation system mainly consists of scalping shaker module, desander module and desilter module. As a pre-scr