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Growing populations, especially in urban areas, require ever more and ever better infrastructure - and Melbourne is no exception. In all, more than 9 km of new metro tunnels are being built here as part of the Melbourne Metro Rail project. In keeping with the geology beneath Melbourne, four slurry tunnel boring machines were used. To ensure the reusability of the slurry, four Herrenknecht separation plants with a capacity of 1,400 m³ per hour each were deployed. To keep the proportion of solids as low as possible, 16 filter presses with high filter performance and capacity formed the second separation stage.

 

Scope of supply
  • Design, planning and support of the customer during setup and disassembly
  • Organization of the transport of over 200 transport units from Europe and China to the jobsites in Melbourne
  • 4 x HKS-CC 1400, drum screen, control room with laboratory
  • 16 x filter presses
  • 4 x bentonite mixing plants
  • Tank system with a volume of up to 800 m³
  • 4 x horizontal and 4 x inclined stockpile belts
  • 20 x 80 m³ silos for storing bentonite and lime
  • Noise and vibration canceling system (NVCS)

MAX.

60 dB(A)

NOISE LEVEL AT A DISTANCE OF 30 M

UP TO

6 G

ACCELERATION ON DEWATERING SCREENING MACHINES

RESIDUAL MOISTURE VALUES OF

< 30%

 

Top performance – minimal environmental impact

The 4 HKS-CC 1400s used here were characterized in particular by their compact design and the resulting simpler setup in the space-constrained, inner-city area. By retrofitting a noise and vibration canceling system, initial vibrations and environmental influences were significantly reduced and early concerns of residents were dispelled for good.

 

The plant performance and the availability of the equipment during the entire tunnelling operation were over 90% at all times.