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Home » Tunnels Construction Machinery » Tunnel Boring Machinery » Slurry Shield Tunnel Boring Machine

Slurry Shield Tunnel Boring Machine

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Slurry Shield Tunnel Boring MachineFor excavations, shields plays a major role. Slurry or hydro shield is suitable for weak soils and for long distance excavation. In this method cutter excavates the soil using rotary motion. This creates a hollow space in the soil right in front of the boring machine. The slurry shield works with an overpressure, which prevents collapse. The hollow created by excavation is sealed by slurry a mixture of water and a natural clay, to ensure that no ground water can enter. The excavated soil after being mixed with the slurry is pumped out to the slurry treatment plant at the surface of the ground. This streamlines and automates the delivery of slurry. The slurry shield can also be equipped with additional crusher, depending on kinds of strata.

Advantages

The use of slurry shield incurs following advantages :

Applications

Slurry shield tunneling machines are applicable for :



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