Giant TBM cutterhead takes road trip to second drive

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Dorothy concluded the very first tunnel generate on the Lengthy Itchington Wooden Tunnel in July, breaking by means of at the south portal web-site.

Now the TBM cutterhead has been dismantled and transported 2.5km on a 48-wheel Self Propelled Trailer to the tunnel’s north portal website for its 2nd travel.

The TBM’s 120t tail pores and skin was also moved in the exact operation that took 3 several hours.

Eight other substantial parts from the TBM’s entrance shield and center protect, have now been transported by specialist devices, which was made use of exclusively to keep away from any momentary alterations to the road structure via Ufton.

The relaxation of the 120m extensive TBM will be pulled again through the one-mile tunnel by a unique ‘caterpillar’ system, at a tempo of 150m per day.

TBM tail skin leaving south portal site

After all the parts are back at the north portal, the TBM will be reassembled right before starting the 2nd bore later on this calendar year.

Alan Payne, HS2’s senior challenge manager claimed: “We’re now seeking forward to the reassembly of the TBM more than the coming months, and the get started of the next bore of the tunnel later on this calendar year.

“When we rejoice the breakthrough up coming summer time, this will be the 1st completely completed twin bore tunnel on the HS2 project.”

 

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Aaron Morby

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Jerrie Parise

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