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April 2014
Volume 66    Issue 4

Tunnel boring machine to be used on Australian decline tunnel

Mining Engineering, 2014, Vol. 66, No. 4, pp. 52-52


PREVIEW:

On Dec. 20, 2013, an 8-m (26.2-ft) diameter Robbins hybrid single shield/earth pressure balance tunnel boring machine (EPB TBM) was launched to bore the Grosvenor decline tunnel for Australia’s Anglo American coal mine. The machine was built using onsite first time assembly (OFTA) in order to fit within a tight project schedule. Assembly at the remote jobsite near Moranbah, Australia took about four-and-a-half months, and then the machine was walked down into a launch tunnel. 



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