Dam piles
Premium Content
08 May 2008
The Treviicos-Rodio joint venture, under a 36-month Design-Build contract, has used two barge-mounted Wirth PBA612 RCD (Reverse Circulation Drilling) rigs to construct a concrete cut-off wall for on W.F. George Dam, on theChattahoochee River, in the US. The cut-off wall, comprising an underwater secant pile section flanked by two land-side slurry wall wings, was necessary because of seepage problems. The RCD rigs were set above 137 mm diameter x 39.6 m long casings drilling to a depth of about 70 m from the top of the casing.
The case for electric construction equipment is now as much about productivity and business value as it is about sustainability
While excavators, loaders and TBMs dominate the spotlight, crawler aerial work platforms are quietly transforming how mining and tunnelling projects are built, maintained and operated.
KHL Content Studio’s Jon Abrahams on how a new identity may capture attention, but it’s understanding that builds trust