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.1 II I PROGRAM SAIIM- EXAMPLE PROBLEM NO. 2 PAGE 2 PROGRAM SAlIM D-LOAD REQUIREMENTS FOR A 60 IN. DIAMETER CIRCULAR PIPE ***********************************************.******-************************* II :_:-:-~---~-~-:-~_______________________________________________________________ DLVu:;n~;l( (in.) 60.00 I WALL B, THICXNESS (in.) 6.000 INS'1'ALLA'1' ION CONDITIONS -------------------------------------------------------------------------------- I I I MINDmM DEP'l'H OF FILL (ft.) KAXIHUK DEP'l'H OF FILL (ft.) SOIL DUSI'l'Y (lb/cu. ft.) BEDDING CLASS INSTALLATION 'l'YPE POSITIVE PROJECTION RATIO POSITIVE SE'l"1'LEMEll'1 RATIO SOIL LA'l'ERAL PRESSURE/FRIC'l'!ON 'l'I:RM SOIL LA'l'ERAL PRESSURE COEFICIENT 1.00 10.00 120.0 B POSITIVE PROJECTING EHl3ANRMEN'1' 0.90 0.50 (RMUl 0.1650 0.33 II~-~-~-~_:_~-~-~-~-~---~-~-~-~-~--------------.---------------------------------- LIVE LOAD AASP.TO HS-20 NO SURCHARGE LOAD . IF ACT 0 R S 0 F S A F E '1' Y -------------------------------------------------------------------------------- FACTOR OF SAFETY ON 0.01 INCH CRACl': D-LOAD (EARTHrLIVE) 1.00: 1.1)0 FACTOR OF SAFETY ON UL'1'IHA'l'E LOAD (EARTH,LIVE) IN ACCORDANCE WITH AS'l'H C 76 DL.01 LESS 'l'HAN 2000 LBS/F'1'/F'1' 1.5 DL.01 GREATER THAN 3000 LBS/F'1'/F'1' 1.25 DL.01 BETHEEN 2000 AND 3000 LBS/F'1'/F'1' INTERPOLATED I I RES U L '1' S 0 FAN A L Y S I S 1;:;:--:;;:-::;;-;;--;;--;; --;:r;,;;~.;: I (ft.) FACTOR (l~/ft) (l~/ft) (l~/ft) (l~/ft) (l~/ft/ft) , 1.0 1.03 740. 1989. o. 2730. 4.24 129. 193. I 2.0 1.06 1522. 2253. o. 3775. 4.24 178. 267. 3.0 1.09 2348. 1680. o. 4029. 3.90 207. 310. 4.0 1.12 3221. 1194. o. 4415. 3.44 256. 385. 5.0 1.15 4144. 899. o. 5043. 3.20 315. 472. I 6.0 1.18 5118. 705. o. 5823. 3.05 382. 572. 7.0 1.22 5148. 569. O. 6717. 2.94 456. 684. 8.0 1.26 7235. 470. O. 7705. 2.86 538. 807. I 9.0 1.29 8385. 395. o. 8780. 2.80 628. 942. 10.0 1.33 9599. 337. O. 9936.2.74 724.1087. I II 37