Underground—North America—Canada—Tunneling
Among other things, this concept included a
double layer of the AT – 139 Pipe Umbrella
Support System, DYWI ® Drill spiles and face
bolts as well as a heavy-duty set of 3-bar
PANTEX Lattice Girders. The pipe umbrella
support system used features a so-called
squeezed connection type, which allows a
safer and faster completion of installation
work besides an increased load-bearing
capacity. By using an AT – Automation Unit,
operational effectiveness and occupational
health and safety were improved further on.
Within a few weeks’ time, all required
ground control systems were designed
and transported to the remote project
site. Afterwards, excavation works
were successfully accomplished.
Owner
British Columbia Hydro and Power Authority
(BC Hydro), Canada
Design Builder
SNC-Lavalin Inc.
Civil Contractor
Aecon/SNC-Lavalin Inc. Joint Venture (ASL JV),
Canada
Subcontractor Tunneling
Frontier-Kemper Constructors ULC/ASL Joint
Venture (FK/ASL JV)
Consulting
BeMo Tunnelling GmbH, Austria,
ILF Consulting Engineers, USA
DSI Unit
DSI Tunneling LLC, USA
DSI Scope
Design, production, supply, technical support
DSI Products
3-bar PANTEX Lattice Girders, AT – 139 Pipe Umbrella
Support System, AT – 139 Automation Unit, DYWI ® Drill
Spiles and Rock Bolts, CT-Bolt™ Combination Rock
Bolts
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