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3:27 PM Buoyancy of Underground Tanks <br />Fiberulass Straps with Deadman Anchors _f. <br />8/14/87 <br />"Roll Typed Items aro Input Values" <br />Modern Welding Co. of California <br />Underground Tank Description, <br />USA Petroleum, Lodi, 12,000 gallon Jacketed Co <br />_ <br />Tank Model: <br />GS13 <br />- Tank Diameter O.D. Inches : <br />Tank Length Inches): <br />97 <br />384 <br />_ Tank Capacy1Gallons): <br />12162 <br />Shell Thickness(inches); <br />0,24 <br />h <br />—_Primary <br />To Buoyancy: <br />sunifis !/Enclosures <br />_— Item 1 'Diameter" (inches): <br />102,472 <br />— <br />42 <br />--- Item 1: "Heigh_ t" (inches): <br />80 <br />Item 2: "Diameter" Qncheai <br />42 <br />Item 2: "Height" (inches): <br />60 <br />Buopey contributed by enclosures: <br />6004 <br />Total buoyant Force of tank: <br />108,478 <br />-- <br />Calculated Tank Weight: <br />9013 <br />_ _ <br />Not Buoyancy required for Floafout: <br />9 ,4 3 <br />Concrete Slab at Grade <br />Concrete weight / cubic foot: <br />130 <br />Surface C_vncrete Sleb Thickness Inches): <br />6 <br />Weight of concrete Slab: <br />(Slat) slze:24"dank diameter, 48"< tank length) <br />23595 <br />_.Burial and Water Table. Depth <br />— Nat sa_furatod soli weigftt to ova rcoma bbuoysncy <br />- - - — ----- <br />_Saturated backfill weight / N cubic foot; <br />— Dry backfill weight / # cubic foot: <br />Tank Burial Deth To of tank to rade Inches : <br />Elevation of water table, " 0 inches' is flooded hole: <br />Weight of Ba�kfrll directly over tank: r- <br />57.6 <br />120, <br />100 <br />60 <br />06 OK <br />144191 <br />_ <br />Distance from T_a_n_k_'s side to Excavation Wall (inches): <br />_ ! DeadminAnchorwidth Inches): <br />Deadman Anohor heiglst (Inches):' <br />J <br />12 OK <br />_0 _ OK_ <br />12 <br />Deadman anchor length Inches <br />0 OK <br />— <br />Dersefman Conirlbutlon toward Overcoming Buoyancy: 1 <br />0 <br />Taal Concrete, overburden, deadman contrtbutlons: <br />167786 <br />If u( ) then Insufficient Buoyancy Results: i <br />SAFETY FACTOR- <br />68,323 <br />1.2 1.69 JACCEPTABLE <br />Required <br />Fiberglass Holddown Straps <br />Nnl Finuyancy i6aetion to be overcame by strap <br />Number of Holddown straws used on tank: <br />0 Straps not Regd. <br />0 Strap Size: 3/16" x 2" each <br />Maximum Allowable Load associated with strap: <br />$Unps combinsd strength to overcoming buo an : <br />20500 pounds I rtes <br />0 pounds <br />SAF -Y FACTOR: <br />1.50 #DIVIUI 11DIV/01 <br />Required <br />