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HomeMy WebLinkAboutSlater, Rich Anchor Calcs - Stamped Rev111416 Central Drive WestCarmel, IN 46032 © 2018 American Earth Anchors QR-4ST-48TH Mar 2018 American Earth Anchors info@americanea.com 866-520-8511 Contact us for CUSTOM WORK Size, length, shape, material, prototypes, cable assemblies +1 508-520-8511 americanearthanchors.com American Earth Anchors The best screw you will have in the dirt TM americanearthanchors.com QUICK REFERENCE with 4' cable and thimble 4" steel arrowhead 4ST-48TH Specifications Galvanized steel Anchor 4" (10 cm) Thimble .7 lb (.32 kg) Galvanized steel Breaking strength: 4,200 lb (18.7 kN) Diameter: " (4.8 mm) Cable Galvanized steel aircraft cable 3 16 / Length: 4' (1.2 m) Available in stainless steel as special order ¾" (19 mm) Steel Arrowheads 3" 4" Hardpan Asphalt Sandy gravel Very dense sand Silty/clayey sand Silty gravel Loose fine un- compacted sand Soil Class 1 Soil Class 2 Soil Class 3 Soil Class 4 2,200 lb 1,900 lb 900 lb 3,500 lb 475 lb 15.6 kN 9.79 kN 8.45 kN 4.00 kN 2.11 kN Loose/med dense sands Loose sands Firm clays LOAD CAPACITY Pullout strength at MINIMUM DEPTH 2½' (.8 m) Soil Class 4 Soil classification per ASTM D-2487/2488 © 2018 American Earth Anchors QR-4ST-48TH Mar 2018 American Earth Anchors info@americanea.com 866-520-8511 Contact us for CUSTOM WORK Size, length, shape, material, prototypes, cable assemblies +1 508-520-8511 americanearthanchors.com ss 4ST-48TH Installation 3 PULL 2 REMOVE the drive rod the cable to turn (“lock”) the anchor 1 DRIVE anchor to minimum depth of 2½' (.8 m) Non-vertical load Install at same angle as load for maximum pullout strength Into the ground Don’t use rebar – it can get stuck in the anchor! 3' (.9 m) drive rod Safety holding handle DR-SHH DRH-SM Hammering head ¾" (19 mm) diameter DR-4ST Sledge hammer Demolition hammer Locking the anchor Drive rod fits into back of arrowhead Bumper jack Ratchet-lever hoist (“come-along”) SIMPLE PULL LEVERAGE (Mechanical) Put drive rod through thimble and PULL Not usually needed for this size anchor During locking, anchor will pull up as it turns, settles, and locks – depending on soil type, this can typically be 1-5 inches (3-13 cm) LEVERAGE (Manual) One method: Jackhammer with chisel Make slot through asphalt Through asphalt Use rod as a push-down or pull-up lever Most common method for this size anchor