J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)



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JOURNAL OF THE JAPANESE ASSOCIATION FOR PETROLEUM TECHNOLOGY VOL. 62, NO. 2 (March, 1997) (Received January, 22, 1997; accepted March 26, 1997) Niigata-Sendai natural gas pipeline project Takashi Egawa Abstract: Construction of a natural gas pipeline from Niigata to Sendai was completed in March 1996. Pipeline construction consists of engineering works such as civil engineering, material technology, welding technology and so on. This lecture presents the following items regarding the engineering works to be overcome and some technical skills associated with the project are introduced. i) Seismic design ii) Material technology, welding technology, field bending iii) Bridge design, tunnel design iv) Leak detection Key words: pipeline, material technology, welding method, seismic design, bridge design, field bending, leak detection Copyright (C) 1997, JAPT

J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)

Uh (z): n \ Ê ç [ ³z(m) É é ½ û Œü Ì Ï ˆÊ U (cm) Sv: ÝŒv ž š x (cm/sec) Ts: \ w n Õ Ì ŒÅ LŽüŠú (sec)h : \ w n Õ Ì Œú ³ (m) ± Ì Ž Å, Sv Í" a ÝŒvŽw j" Ì x ž š ƒxƒy ƒn ƒgƒ ª Ì p ³ ê Ä é B ] ˆ Ì" Î û ƒp ƒcƒv ƒ ƒcƒ Z p Šî " â ƒkƒx ï Ì "ƒkƒx ± ŠÇ Ï k Ý ŒvŽw j (1982 N)" Å Í, n k Šî Õ Ê É é ÝŒv ½ k x (Koh) Æ µ Ä Å å0.15 Ì l ª Ý è ³ ê Ä ½ B Î ƒp Šî Å Í, "ŠÇ ž Í Í Ì ü ŽË g Œ` ª ð l é d ô ŒW 3.12 𠎲 û Œü ž Í ª É æ ½ l Æ, È ž Í ª Ì Ž æ a ½ Ï" Å ^ Ä é B ˆê û ƒkƒx Žw j Å Í, "ŠÇ Ì ž Í Í \ Ê g ð z è µ ½ i s g æ èžz è é ± Æ ç, ŠÇ޲ û Œü ž Í ª Ɉê v µ ½ l" Æ ³ ê Ä é B { Z p Žw j Å Í, n k Šî Õ Ê É é ÝŒv ½ k x 𠾎 ¹,» ê ð ŠÜ Þ ÝŒv x ž š l Æ µ Ä ¼ ÚSv ð ^ Ä é B Â Ü è, ŠY Z p Žw j ÌSv ( n ˆæ æ ª: A) Í, E Î ƒpšî Ì l ( Ý Œv k x0.15, PˆÊ k x ½ è Ì ž š ƒxƒy ƒn ƒgƒ Å å l 80Kine æ è 12Kine) Ì2 { EƒKƒX ï Ì l ( Ý Œv k x0.15, PˆÊ k x ½ è Ì ž š ƒxƒy ƒn ƒgƒ Å å l 150Kine, d ô ŒW É Î é ² 1/3.12 æ è 12.7Kine) É Î µ Ä1.88 { Æ È é B È í, ŠY Z p Žw j Í, n Õ Ï ˆÊ ð ] ˆ Šî, Žw j æ è ñ2 { ö x å «] é æ É È Á Ä é B Ü ½, ž š Ï ˆÊ @ Å Í, g ª Z Æ ¼ŠÇ Ð Ý ð å «] é ½ ß,» ê ¼ ê Ì Šî, Žw j Å Ì g Ì è ` É ˆÓ ð é K v ª é B ŠY Z p Žw j Í Î ƒp Šî Æ ö x Å, ƒkƒx ïžw j æ è à ¼ŠÇ Ð Ý ð å «] éœxœü É é Æ é B ÝŠÇ É é n k Žž ž Í x Í, Î ƒp Šî Æ l É, Ì ü ŽË g Œ` ª ð l é d ô ŒW 3.12 ð p, ŽŸŽ É æ èžz è é B ƒðle= ã3.12ƒðl2+ƒðb2 ƒðl=eƒî/luh(z)ƒ 1 J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)

J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)

J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)

2) Sugie, E., Matsuoka, M., Tanaka, T. and Kawag uchi,y., 1987: Notch ductility requirements of line pipes for arresting propagating shear fracture. Trans. ASME, 428/vol.109. 4) A.G.A.: An analysis of reportable incidents for natural gas transmission and gathering lines 1970 through June 1984 (by Battelle). A.G.A.NG-18 Report No. 158. J. JAPANESE ASSOC. PETROL. TECHNOL. Vol. 62, No. 2 (1997)