Microtunnelling, Tunnelling

Boring under rail needed for transmission line

The works include constructing 132 KV line entries into Broadlea Substation and at the existing Moranbah Substation, which will include the undergrounding of fibre optic connections beneath a railway where there is inadequate clearance.

Horizontal boring and trenching of the fibre is included in this work.

The tender also includes new poles for the 66 KV landing spans at Broadlea substation for the Moorvale and Carborough feeders.

There may also be minor maintenance required to the Moranbah – Broadlea feeder to enable it to be energised at 132 KV.

Tenders close 3 pm on 6 July 2011. Click here for more details.

Lloyds Auctions has welcomed bidding on a 2007 Herrenknecht tunnel boring machine (TBM).

The model is an automatic slurry tunnelling, model M (micro) – 1133MAVN1500TB/M-1134C.

The integrated modules include:

  • Tunnelling machine, model AVN1500B
  • Excavated material transport by slurry with four hydraulic drive motors
  • Rated power of 132 kilowatt with universal navigation system and automatic lubrication system
  • Cutting heads both 1850 mm for hard rock and mixed ground

The tender closes at 3 pm on 1 July 2011 and the machine is available by inspection. Call Scott Webber on 0439 765 669 or click here for more details.

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