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SECTION r — All Single Wall and Double Wall Tanks • Tank diameter plus 12" to 24" for concrete Anchoring Chart anchor pad. Minimum burial depth to achieve 1.2 safety factor against flotation assuming worst case conditions of * Anchor points must be aligned with designated water to grade and the tank empty.Assumes multiple ribs (►.) ±1". tank installation and two deadman widths minimum spacing. ♦ Place anchor straps in the strap guides over the designated ribs ( ►.). Anchoring Minimum Burial Depth FIGURE 10 Method No 42"w/one Sealed FRP Strap Wire Rope (no top slab) Turbine or Watertight Triple Clamp (Strap Eyelet Enclosure Turbine Enclosure See Detail) Double Wall optional Tank Tumbudde 4' Diameter Tanks H Assembly • 8"Bottom Slab 24" 24" __; —� • 6'x 6"Deadmen 24" 26" Deadman Anchor Pad (24"min.spacing) Anchor Tenk End System • No Mechanical Anchoring 28" 40" system View 6' Dlameter Tanks FIGURE 11 Strap Eyelet [Fiberglass Strap • 8" ottom Slab 24" 24" Galvanized \ • 12 x 12"Deadmen 27" 30" steel 24"min.spacing) • No Mechanical Anchoring 42" 50" 8' Diameter Tanks s • 8"Bottom Slab 32" 36" • 12"x 12"Deadmen 40" 44" A (24"min.spacing) Flat or Round Strap Eyelet Detail • No Mechanical Anchoring 55" 60" 10' Diameter Tanks (10M to 15M Gallon) ANCHOR STRAPS - FLAT • 8"Bottom Slab 40" 42" Tank FIG. ANCHOR STRAPS • 18"x 12"Deadmen 40" 42" Dia. 10 FIGURE 11 (3 "min.spacing) H A B • No Mechanical Anchoring 62" 66" 4' 13" 1 7/8-1 2 7/8" 10' Diameter Tanks (Over 15M Gallon to 30M Gallon 6' 27" 1 7/8" 2 7/8" • 8"Bottom Slab 42" 46" 8' 36" 1 7/8" 2 7/8" • 181 x 12"Deadmen 48' 50" 10' 42" 1 7/8" 2 7/8" (36"min.spacing) 12' 58" 1 7/811 2 7/8" • No Mechanical Anchoring 70' 74" 10' Diameter Tanks (Over 30M Gallon? ♦ All anchor straps must be uniformly tightened with turn- * 8"Bottom Slab 51" 55" buckles or come-a-longs. Straps should be snug, but • 18"x 11"Deadmen 51" 55" not cause tank deflection (see figure 10). (36"min.spacing) • No Mechanical Anchoring 72" 75" • Measure tank deflection by measuring tank diameter before and after snugging straps. Contact Tank Technical Support for alternate • Use standard nonmetallic gauge stick. anchoring methods. ♦ See Installation Checklist for specific measurement in- structions. MECHANICAL ANCHORING ♦ Triple clamp wire rope. ♦ Use only Containment Solutions fiberglass anchor straps. * If deflection occurs, loosen straps to allow tank to go ♦ Use anchor straps specifically designated for each di- back into round. ameter of tank. Length of strap is different for each tank diameter. CAUTION ♦ Maintain proper distance between anchor points on each side of the tank : Do not use straps between ribs (exception 4' • Tank diameter plus one deadman width for diameter tanks) or tank damage may occurl concrete deadmen. 10