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FUEL TANK BUOYANCY JOB NO. : 21M085 <br /> w1.1 <br /> 1 - 25k GALLON TANK DATE : 4/26/2023 associates <br /> architecture engineering 5urveying PAGE: 2 <br /> 20 52MC�ri�e, wAesto,cd 95555 p:209.523.5323 F 709.539.7504 <br /> SLAB WIDTHTANK PROPERTIES: <br /> i• <br /> Empty Volume : 25,000 Gallons <br /> Misc. Equip.: 2,000 Gallons F, _Z I � <br /> Empty Weight : 14,600 lbs = I � 511MP I m T <br /> Length : 47.50 ft <br /> Q Diameter: 10.00 ft <br /> J- <br /> F" Bury Depth: 4.33 I ft I r I I (b ,L T <br /> Q Sump Diameter: 4.00 ift <br /> p Sump Quantity: 2 - <br /> Hl- � 1 <br /> DEADMAN PROPERTIES: I TANK I <br /> Length : 46.00 ft <br /> ~ <br /> Width : 18.00 in <br /> Depth : 8.75 in 1 <br /> a BACKFILL PROPERTIES: BUOYANT FORCES: <br /> Z Material: PEA GRAVEL Tank Displaced Water Vol. = 3,342 ft3 <br /> _ Dry Unit Wt.: 100 pcf Misc. Equip. Displaced Water Vol. = 267 ft3 <br /> Saturated Unit Wt.: 120 ;pcf Sump Displaced Water Vol. = 109 ft3 <br /> Submerged Unit Wt.: 57.6pcf Total Displaced Water Vol. = 3,718 ft <br /> Friction Angle,r : 5 deg. x 62.4 Ib/ft3 <br /> Slab Thickness: �8 in <br /> TOTAL BUOYANT FORCE = 232,031 lbs <br /> RESISTING FORCES: <br /> Concrete Slab Wt. = depth x length x width x 150 pcf = 65,650 lbs <br /> Tank Wt. = (empty weight_see above) = 14,600 lbs <br /> Tank Backfill Wt. = depth x tank diameter x tank length x submerged unit wt. = 118,469 lbs <br /> Deadman Wt. = depth x length x width x 123 pcf x 2 deadmen = 12,377 lbs <br /> Deadman Backfill Wt. = deadman width x length x backfill depth x 2 deadmen = 161,508 lbs <br /> Sumps Wt. = -(sump displaced water volume x backfill weight) _ -6,268 lbs <br /> TOTAL RESISTING FORCE = 366,336 lbs <br /> Total Resisting Force 366,336 lbs <br /> Safety Factor = _ = 1.58 >1.25-OK <br /> Total Buoyant Force 232,031 lbs <br /> DEADMAN: 18.00 in wide x 8.75 in deep x 46.0 ft long BACKFILL MATERIAL: <br /> PEA GRAVEL <br /> BACKFILL DEPTH: <br /> SLAB: 13.0 ft wide x 8.00 in thick x 47.5 ft long 4.33 ft <br />