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Recently Helical Anchors, Inc. (HAI), www.helicalanchorsinc.com, with manufacturing and corporate offices located in Minneapolis, MN, supplied (400) 2.875” (73mm) x 0.276” (7mm) wall helical anchors with (4) 12” helix bearing plates that were installed as tieback anchors with thread bar, coupling and tieback plate for a large retaining wall in Minnesota. The retaining wall is 24 feet tall, and (4) rows of anchors were installed at a 20 degree angle to anchor the whalers. The required capacity for each pile was (50) kips, and tension tests were successfully completed to 133% of the required capacity.
Helical Anchors, Inc. Supplies (400) Helical Tieback Anchors for a Large Retaining Wall
Helical Anchors, Inc.
5101 Boone Ave.
Minneapolis, MN 55428
P: 763-201-6552 • F: 763-536-9102