Φ6260mm Slurry Pressure Balance Shield Machine
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|Complete Machine||Length of Main Engine||8320mm|
Length of Main Engine
|Clearance of Tail Ring||30mm|
|Seal of Tail Ring||3+1 ranks|
|Cutter head||Cutterhead Aperture Ratio||30.7%|
|Supporting Mode||Intermediate Support|
|Driving Mode||Electrical Motor Drive|
1) The pressure slurry can be stabilized in the excavation face in
the stratum which is easy to occur.
2) The slurry pressure transfer speed is fast and uniform, and the
control precision of the balance soil pressure of the excavation
face is high, and the disturbance of soil around the excavation
face is small, and the control precision of the ground settlement
3) Applicable to weak the mucky clay layer, loose sand layer,
gravel, cobble layer and hard soil interface layer formation.
Without special soil improvement measures, circulation of slurry,
adapt to the geological conditions. It is especially useful in
stratum water content reached, above the water more Jiang tunnel
and subsea tunnel.
4) Cutter, cutterhead wear abrasive is small, easy to long distance
5) Muck excavated conveyed by slurry pipeline, fast and continuous,
reduce transportation amount of motor vehicles, fast construction
6) The residue in the transport to the surface will not be exposed
before the tunnel with high cleanness.
7) Cutting noodles and concrete filled with mud and the tool,
cutter to lubrication and cooling effect, small frictional
resistance, mud mixing is small resistance and cutterhead torque is
small, more suitable for large diameter tunnel construction.
1) Fill layer, cohesive soil layer, silty soil layer, sand layer,
gravel layer, mudstone, mmudstone formation.