TUNNELLING
The Rocket Boomer E2 features a larger and more stable square section BUT 45 telescopic boom, instead of the circular BUT 35 of previous models.
Communications manager Ulf Linder says this is important as it prevents overbreak and concrete tunnel lining is an expensive part of any tunnelling project. It also has a double rotation unit that he claims allows more accurate and faster drill positioning than with earlier rigs.
This is due to a horizontal unit mounted on the boom end with 190 movement and a 135 vertical movement unit for the feed swing.
You might also like...
UK first for shaft sinking innovation at £4.2bn potash mine
The new £4.2bn potash mine in the North York Moors is using a raft of new technologies to excavate its two 1.5km deep shafts and 37km of tunnels.
Pressure mounts for HS2 to reduce speed
Pressure is mounting on High Speed 2 (HS2) bosses to cut costs by reducing train speeds.
Detailed Stonehenge tunnel plans unveiled
Detailed plans for the proposed £1.6bn, 2.9km long, tunnel which will take traffic away from the A303 close the Stonehenge World Heritage Site (WHS) have been released. The scheme now awaits a decision on its development consent order (DCO) application.
Strong ‘appetite’ for private investment in Heathrow rail links
There is “significant appetite” from the private sector to invest in Heathrow rail links from the south and west, according to the government’s market sounding reports.
Have your say
You must sign in to make a comment
Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.