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E <br />El <br />XERXES CORPORATION <br />NON -ANCHORED <br />STOCKTON 76 <br />BUOYANCY CALCULATION <br />WATER ATT TOP <br />BY BNO <br />03/01/04 <br />TANK DATA <br />INSTALLATION <br />NOM. CAP. (GAL.) <br />20000 <br />TOTAL COVER INCLUDING SOIL & <br />TYPE (SW=I;DWI=2;DWH=3) <br />3 <br />SLAB (FT) <br />5.00 <br />DRY=1; WET=2 <br />2 <br />TOP SLAB THK (IN) <br />8.00 <br />TANK DIA. (FT.) <br />10 <br />TOP SLAB LNG (FT) <br />39.73 <br />TOP SLAB WID (FT) <br />12.00 <br />PROD STORED (GAL) <br />0 <br /># OF 42 INCH RISER <br />2 <br />SPEC. GRAV. USED <br />1.00 <br />BRINE FILL (GAL) <br />280 <br />SAFETY FACTOR <br />DOWN FORCE/UP FORCE = <br />1.74 :1 <br />TOTAL WEIGHTS <br />DOWN FORCES <br />CONCRETE WEIGHT <br />47675.00 LBS. <br />BACKFILL WEIGHT <br />237569.43 LBS. <br />TANK WEIGHT <br />11000.00 LBS. <br />PRODUCT WEIGHT <br />0.00 LBS. <br />TOTAL DOWN FORCE <br />296244.43 <br />LBS. <br />UP FORCES <br />TANK DISP. FORCE <br />170614.56 LBS. <br />TOTAL UPFORCE <br />170614.56 <br />LBS. <br />WORKSHEET <br />TANK DATA <br />SHELL DIAMETER---------- <br />10.00 FT. <br />ACTUAL CAP (GAL) <br />19703.00 <br />SHELL LENGTH---------------- <br />27.73 FT. <br />TANK WT. (LBS.) <br />11000.00 <br />DOME PROJECTION---------- <br />5.00 FT. <br />O.A.L. (FT.) <br />37.73 <br />MID POINT HEIGHT----------- <br />9.33 FT. <br />NUMBER OF RIBS <br />22.00 <br />COLUMN HEIGHT-------------- <br />14.33 FT. <br />RIB VOLUME--------------------- <br />2631.00 CU. IN. <br />DOME A. (SQ FT) <br />78.54 <br />DOME VOL. (CU FT) <br />523.60 <br />REINFORCED CONCRETE VOLUMES (CU. FT. <br />TOP SLAB <br />317.83 <br />TOTAL DRY VOLUME <br />317.83 <br />FORCE = VOL. X150 LBS <br />47675.00 <br />LBS. <br />BACKFILL VOLUMES (CU. FT.) <br />OVER TANK (DRY) -------------- <br />1802.63 <br />636.80 <br />WET <br />END -WEDGES (DRY)--------- <br />155.40 <br />59.31 <br />WET <br />TOTAL DRY VOLUME <br />1958.03 <br />TOTAL WET VOLUME <br />6%.11 <br />FORCE (DRY) = VOL. X 100 LBS <br />195802.91 <br />LBS. <br />FORCE (WET) = VOL X 60 LBS <br />41766.52 <br />LBS. <br />BUOYANCY <br />SHELL VOLUME--------------- <br />2177.85 CUBIC FT. <br />DOME VOLUME- <br />523.60 CUBIC FT. <br />RIB VOLUME------------ <br />33.50 CUBIC FT. <br />TOTAL VOLUME <br />2734.94 CUBIC FT. <br />VOL X 7.48 GAL/CU.FT. <br />20457.38 GALLONS <br />FORCE = GAL X 8.34 (LBSJGAL.) <br />170614.56 <br />LBS. <br />