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tank.xls rev 2/10/96 <br /> RHL DESIGN GROUP INC. JAMES H.RAY RCE 24518 <br /> 1137 NORTH MCDOWELL BLVD. <br /> PETALUMA, CA 94954-1469 <br /> (707) 765-1660 <br /> CLIENT Southland Corporatiaon <br /> JOB$ <br /> DATE: 4/20/98 <br /> HOLDDOWN CALCULATIONS FOR FLAT END UNDERGROUND TANK 2.18 <br /> Total Containment 10,000 Gal DW UG Tank 1.37 <br /> Assumed WL at to of tank at minimum burial depth <br /> TANK TANK MAT DEPTH MISC. <br /> OD= 8.00 WIDTH= 10.00 W.L.= 3.50 DRYBF= 100 <br /> OL= 26.67 LENGTH= 40.00 TANK= 3.50 SUBBF= 60 <br /> WGT= 8398 DEPTH= 0.67 HD= 11.50 LGTHHD= 40 <br /> #MW= 2 SIZEHD= I <br /> ODMW 3.50 MWarea= 19.24 <br /> s <br /> HDS= 4 <br /> VOLUME PCF TOTAL LBS <br /> BUOYANCY INCLUDING MANWAYS 1341 62.4 83652 <br /> TANK DEAD WEIGHT 8398 <br /> CONCRETE TANK SLAB - above WL 268 150 40200 <br /> CONCRETE TANK SLAB - below WL 0 88 0 <br /> BF DRY 604 100 60381 <br /> BF SUB ABOVE TNK 0 60 0 <br /> BF DRY BELOW TNK TOP- SIDES 0 100 0 <br /> BF SUB BELOW TOP OF TANK - SIDES 183 60 10989 <br /> BF HD DRY 226 100 22640 <br /> BF HD SUB 640 60 38400 <br /> HD SUB WEIGHT 80 87.6 7008 <br /> BF REDUCTION FOR MANWAYS -5446 <br /> TOTAL DOWN LOAD 182570 <br /> NET DOWN LOAD 98918 <br /> F.S. WITH DEADMEN 2.18 <br /> F.S. WITHOUT DEADMEN 1. 37 <br /> REQUIRED FACTOR OF SAFETY MINIMUM 1.25 <br /> FACTOR OF SAFETY 1.25 2.18 <br /> MAXIMUM LOAD TO DEADMEN FOR F.S. 0 68048 <br /> AVERAGE LOAD TO EACH ANCHOR POINT 0 8506 <br /> AVERAGE CABLE LOAD DOUBLED CABLE 0 4253 <br /> CALCS FOR AREAS RE WATERTABLE <br /> R= 4.00 TANK RADIUS <br /> h= 8.00 WL FROM BOTTOM OF TANK + ABOVE - BELOW <br /> A1= 50.27 GROSS CROSS SECTION OF TANK <br /> A2= 50.27 AREA OF TANK BELOW WATER LINE <br /> 0.00 AREA OF TANK ABOVE WATER LINE <br /> A3= 0.00 DRY BF SIDES OF TANK <br /> A4= 6.87 WET BF SIDES OF TANK <br /> �P <br /> n, <br /> n <br />