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w ALTON <br />ENGINEERING, <br />TANK L f A Vā–  LV <br />TIGER MART - 2105 COUNTRY CLUB BLVD. <br />STOCKTON, CA <br />THIS CALCULATION 15 FOR TWO TRUSCO EIGHT FOOT DIAMETER 12,000 GALLON <br />CALCULATION 15 BASED ON THE SINGLE DIESEL TANK, WHICH 15 "WORSE CASE"_ <br />ASSUME TANK, BACKFILL, AND SLAB COMPLETELY SUBMERGED: <br />SUBMERGED WEIGHT OF CONCRETE = 8-i_(o PCF <br />SUBMERGED WEIGHT OF BACKFILL = 60.0 PGF <br />I. OVERBURDEN ABOVE TANK - PER PEI/RP 100-94 CAN BE CALCULATED <br />USING THE FOLLOWING FORMULA: <br />C(14/3) (51 + 52 + V B1 B2 )) - ((V/2) + M) <br />D = TANK DIAMETER tall' = 8.1 FT. <br />d = BURIAL DEPTH (FROM BOTTOM OF TOP SLAB) = 333 FT. <br />H = (D/2) + d = 138 FT. <br />L = TANK LENGTH = 32 FT_ <br />51 = SLAB AREA = (L+4) * (D+3) = 36 * 11.1 = 39910 SF_ <br />52 = REFLECTED TANK AREA (D*L) = 68.1 * 32) = 2592 S.F_ <br />V = TANK DISPLACEMENT = 12,000 GALLONS = 1604 CUBIC FEET <br />M = VOID IN OVERBURDEN = 2 - 42 "0 MANWAY, APPROX. 4' DEEP <br />= 7t* (3.5'/2) 2* 4 = 38.48 CUBIC FEET * 2 = 16.9i <br />THEREFORE, OVERBURDEN ABOVE TANK WOULD BE EQUAL TO: YpSwEl <br />_ ((138/3) (399.6 + 2592 +39910 s 2592)) - (1(004/2 + Vo.9-1) <br />_ <br />(2.46- 980fo3) - 8-19 = 153335 Cp. OCT 17 1995 <br />153335 C.F. * 60 PCF = 92001 LBS <br />2_ CONCRETE SLAB AT GRADE = 399.6- ofol * Si 6 = 23,453 LBS1 PERMIT/SERVICES <br />3. TANK WEIGHT (FROM MANUFACTURER) = 11,423 LBS <br />4. TANK TOP ANCILLARY EQUIPMENT = 2,000 LBS <br />TOTAL UPL [FT FORCE (UF) <br />= (1604 + l6.96) * 62.4 = 104,892 LBS <br />TOTAL RESISTANT FORCE (RF) <br />'B2,001 0 = . <br />11 L55 <br />RF > UF, : OK, HOLDDOWNS NOT REQUIRED AT 48" BURY DEPTH (PER DRAWINGS) <br />SAFETY FACTOR = 128,877/104,892 = 123 <br />843 Riske Lane, West Sacramento, CA 95691 (916) 372-1888. FAX 373-1172 <br />Mailing Address: P.O. Box 1025, West Sacramento. CA 95691 <br />