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Tank Buoyancy Summary 7/20/2009 <br /> Rev 1 <br /> Initial Parameters <br /> Tank Size gallons:DSII 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 0 <br /> Calculated Tank Weight: 13,911 -13,911 lbs <br /> Loss of Buoyancy as Water Table Level Drops(lbs): 0 lbs <br /> Sumps / Enclosures <br /> Quantity of Item 1 enclosures 2 <br /> Item 1: "Diameter"(Inches): 48 <br /> Item 1: "Height"(inches): 60 OK <br /> Quantity of Item 2 enclosures 0 <br /> Item 2:"Diameter"(Inches): 0 QRpf ESSI <br /> Item 2: "Height"(inches): 0 OK � � TC' `� <br /> Buoyancy contributed by enclosures: 7841 lbs 4 t� T. � <br /> Potential Net Tank Buoyancy: 164,180.1 lbs <br /> Concrete Slab at Grade <br /> X11 <br /> Dry concrete weight/cubic foot: 150 �- f. '-,i0. 2!D15 <br /> Surface Concrete Slab Thickness(Inches): 6 3`3►I 0 <br /> Weight of concrete Slab: 34,589 lbs <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 \f_tic ClLt�e <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:F Above Top of Tank <br /> 1 Tank Burial System ' 195,237 lbs of Overburden Frustrum of Pyramid <br /> Overburden lost due to sump size and number: 11419 <br /> Net Overburden = 183.818 lbs <br /> Total Weight Concrete and Overburden: 218,407 lbs <br /> RESULTS <br /> Safety Factor Req'd of 1.20: 1.33029 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 />