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  • Tunnel boring machine / mixshield TBM / slurry pressure balance (SPB)

XSE series

Article: 00137056

Tunnel boring machine / mixshield TBM / slurry pressure balance (SPB)

In urban environments with mixed ground conditions, settlement is not an option, and must be kept as close to zero as possible. The XSE TBM?standing for a Crossover (X) between Slurry (S) and EPB (E), fits the bill in many cases. In variable ground the XSE combines the best aspects of both proven TBM designs, making for an incredibly versatile solution.

In EPB Mode

In low permeability soils without high hydrostatic pressures, the XSE can advance quickly and efficiently in EPB mode without the expense and complication of slurry-based muck handling. While in EPB mode, any slurry treatment plant on site can be simplified and more economical. In EPB mode the machine utilizes a screw conveyor to maintain face pressure and remove muck. Because there is no slurry at the excavation face, pressure control is safer and any over-excavation is immediately apparent.

Specifications

  • Options: mixshield TBM, slurry pressure balance (SPB)

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