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Tank Buoyancy Summary 7/20/2009 <br /> Rev 1 <br /> Initial Parameters <br /> Tank Size gallons:iSll w/Two compartments <br /> Tank Model: GSII <br /> Outer Tank Diameter(Inches): 121 <br /> Tank Length(Inches): 410 <br /> Tank Capacity(Gallons): 20408 <br /> Potential Tank Buoyancy: 170,249 lbs <br /> Primary Shell Thickness(Inches): 0.25 <br /> Secondary Shell Thickness(Inches): 0 <br /> Accessories Weight Extra 550 <br /> Calculated Tank Weight: 14,461 -14,461 lbs <br /> Loss of Buoyancy as Water Table Level Drops (lbs): 0 lbs <br /> Sumps / Enclosures <br /> Quantity of Item 1 enclosures 4 <br /> Item 1:"Diameter"(Inches): 48 <br /> Item 1: "Height"(inches): 60 OK <br /> Quantity of Item 2 enclosures 0 <br /> Rem 2:"Diameter"(Inches): 0QFESSIO/AC yq <br /> Item 2: "Height"(inches): 0 OK <br /> Buoyancy contributed by enclosures: 15683 lbs �� T <br /> Potential Net Tank Buoyancy: 171,471.5 lbs <br /> Concrete Slab at Grade '; <br /> Dry concrete weight/cubic foot: 150 No. 2515 '' <br /> Surface Concrete Slab Thickness(Inches): 6 � <br /> Weight of concrete Slab: 34,589 lbs 3(fit I f 0 <br /> (Slab size:24">tank diameter,48">tank length) <br /> Burial and Water Table Depth <br /> Net saturated soil weight to overcome buoyancy 57.6 �_OF CA��F� <br /> Saturated backfill weight/#cubic foot: 120 <br /> Dry backfill weight/#cubic foot: 100 <br /> Tank Burial Depth,Top of tank to grade: 60 inches <br /> Elevation of water table"0"is flooded hole: 40 inches <br /> Location of Water Level Relative to Tank: Above Top of Tank <br /> 1 Tank Burial System 195,237 lbs of Overburden Frustrum of Pyramid <br /> @............................... <br /> Overburden lost due to sump size and number: 22837 <br /> Net Overburden = 172,400 lbs <br /> Total Weight Concrete and Overburden: 206,988 lbs <br /> RESULTS <br /> Safety Factor Req'd of 1.20: 1.20713 Hold Down's Not Needed <br /> Special Note: <br /> If there is a possibility of a high water table precautions should be taken to prevent"floatout". This can be by using <br /> Deadman, holddowns,overburden backfill and concrete cover. All of these act together as a complete system. <br /> If anyone of these elements is not fully utilized,holddown system may not function adequately. <br /> Disclaimer Statement: <br /> The attached information is supplied to you for information purposes only. <br /> Therefore, Modern Welding Company,their officers,directors nor subsidiaries there of accept any/no <br /> responsibility for the use of this information covered within.This information is advisory only and the use <br /> of the material and methods is solely at the risk of the user. <br />