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EVRAZ OREGON STEEL MILLS —
ROLL SHOP EXPANSION Portland, Oregon

Service Provided

• Project required expansion of OSM's existing roll shop to accommodate installation of a new Gerb Waldrich Siegen Roll Grinder and close coordination of construction activities with a still-operating roll shop.
  Work included:
  • Installation of new concrete foundations and slabs for a 2,000 SF building expansion
  • Installation of sixteen, 2-5/8" x 12'-long anchor bolts for the overhead crane support steel
  • Erection of steel and siding for the 24' x 96' x 60'-high building extension
  • Installation of a 75' x 35' x 20' sheet pile coffer cell. The coffer cell allowed for excavation of soil for the new roll grinder pit.
  • Installation of twelve, 30"-diameter pipe pile, driven to an elevation of -80' from ground level
  • Installation of a 70' x 30' x 18' roll grinder pit. Pit walls are 18" thick around the perimeter and base is 36" thick. Reinforcement for concrete consisted primarily of No. 7 and No. 8 rebar.
  • Installation of a one-million-pound inertia block to support the new roll grinder. Block consists of a free-standing concrete foundation, poured in place, then lifted using hydraulic jacks, and supported by twelve Viscodampers.
  • Installation of carriage bed, headstock, tailstock, hydraulic unit, process water piping, and grout bed.
  • Alignment of mechanical components required a tolerance of .002"

Total Project Value
$1,500,000

Project Statistics

• 12,000 man-hours
• All work completed with no recordable or lost-time accidents
• All work completed on time and under budget

Project Timeline
Start Date
  September 2005

Completion Date
  May 2006