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Nov 07 05 02: 32p M I ^chitects 9259431581 p. 4 <br /> Buoyancy of Underground Tanks 9/15/2005 <br /> Fiberglass Straps with Deadman Anchor, <br /> ------------ -------- <br /> Und <br /> er Giasteel 11 <br /> Tank Description, <br /> Tank Model: GS-13 <br /> Outer Tank Diameter(inches):-- 115 <br /> 341 <br /> Tank Ca ac' Gallons), 15332 <br /> Tank Buoyan.. <br /> 127,90 <br /> Primary Shell Thickness Inches 0,25. <br /> Sy --------- <br /> -------------------- econdar----------- 0 <br /> Accessories We ht Extra Boo <br /> Calculated Tank Welghtl 11,006 i 11,008 <br /> Sumps I Enclosures -- <br /> Quan tity of Item j—enclosures —4 4- <br /> Item 1:"Diameter"(I!Iches. 42 <br /> Item 1: "He�it�ches. 84 OK <br /> Quantity of Item 2 enclosures <br /> Item 2:"Diameter"(inches): <br /> Item 2: "Height"Q ch OK <br /> Buoyancy contributed by enclosures 16510 <br /> Net Tank Buqjancy 133,705 <br /> Concrete Slab at Grade <br /> Concrete weight 156 <br /> Surface Concrete Stab Thickness..enches): 8 <br /> Wei 2htof concrete Slab 21,929 <br /> (Slab size:24">tank diameter,48">tank len <br /> Burial and Water Table D21Lth <br /> rated soil weig ht to L overcome b <br /> Puo <br /> Saturated backfill weight/f cubic foo 120 <br /> Dry backfill weight!#cubic foot 100 <br /> Tank—13urial Depth,Lop of tank to grads inches <br /> Elevation of water table inches"is flooded hole: 0 <br /> Weight of Backfill directly over tank 115,475 1 <br /> Overburden lost due to sum R size and number: 16287 <br /> Net Overburden 99,188 <br /> Deadman Configuration <br /> ---_.._--___Deadman Anchor width Q ch 12 OK <br /> Deadman Anchor height nc es)4 12 OK <br /> Deadman anchL)r_Jjng <br /> Lh LInStes;L;l 341 OK <br /> Deadman contribution toward Overcoming j <br /> _@uoZjnc 94,934 <br /> ,: <br /> Iota Weight Concrete,Overburden&Deadman contributions: 216.061 <br /> --------------- <br /> insufficient BuoyancyResults 92,346 11 <br /> SAFETY FACTOR: 1.2 .67 ACCEPTABLE <br /> 1 Require4 <br /> If={ <br /> d <br /> Fiberglass Holddown Strap� <br /> Net Bouyaqjq -------------- <br /> _r"q2n.!��e_overcomt.�y straps i <br /> Number of Holddoi�46-won tank:1 5 i§!TP Size:3�16-x 2-each <br /> 1- -- 7- <br /> Maximum Allowable Load associated a : �00 /strap 1 <br /> 'ou" pounds tr <br /> 'a"su S <br /> 0. 4 pounds Straps combined strenM� overcoming 6"o- n _p _L_+_ <br /> SAFETY FACTOR: 1.50 ACCEPTABLE <br /> R!3uired <br /> Deadman,holddowns,overburden backfill and concrete cover all act together as a complete sXstem. <br /> may <br /> ttnyo _ rn notfunction adequate[ <br /> anyone elements Is not fully utilized,holddown system <br /> Disclaimer <br /> The attachedinformationis supplied to You for information purposes only. <br /> Therefore,Modern WLe�ldjnGcqmpany their officers,directors nor subsidiaries there of accept any/no <br /> ,np <br /> nsrki& only and the use <br /> f advisory.!nth"le of this Information covered within.This information Is adviso <br /> of the material and methods is solely at the risk of the.USer. <br />