ʻO nā pahuhopu nui o ka hoʻomaikaʻi ʻana i ka hana seismic o nā paipu wai wai he ʻelua: ʻo ka mea e hōʻoia i ka hiki ke hoʻoili wai, e pale i kahi nui o ka poho o ka wai, i hiki ke hoʻolako i ka wai i ke ahi a me nā mea koʻikoʻi i kahi pilikia; ʻO ka lua, ʻo ia ka hōʻemi ʻana i ka pōʻino o ka pipeline e hoʻomaʻamaʻa wikiwiki. I nā huaʻōlelo ʻē aʻe, i ka wā e kū ai i nā pōʻino ōlaʻi, pono e loaʻa i kahi ʻōnaehana wai ka mea hiki ke hoʻololi.
He mea nui ka pale ʻana i nā haʻihaʻi wai no ka mālama ʻana i ka hana maʻamau o ka ʻōnaehana wai. ʻO ka ʻōnaehana paipu PE4710 (e like me PE100) ka haʻahaʻa haʻahaʻa loa o ka haki ʻana a me ka leakage o kekahi paipu wai, e kōkua ana e hoʻokō i nā pahuhopu āpau i luna.
ʻO ka hoʻolaha ʻana o ka nalu a me ka hoʻololi ʻana i ka ʻāina mau ke kumu nui o ka pōʻino o ka paipu kanu. Ma muli o ka loaʻa ʻana o ka ikaika axial a me ke koʻikoʻi kulou, ke neʻe nei ka ʻāina e alakaʻi i ke axial a me ke kuʻi ʻana i nā kaila i ka pipeline. ʻO nā mea me ka ʻoʻoleʻa kiʻekiʻe (ke koʻikoʻi hiki ke ʻae ʻia) maʻamau ka palena palena hiki ke hoʻololi. ʻO nā mea ductile i hōʻike ʻia e ka polyethylene (PE) (haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa) loaʻa ka mana deformation maikaʻi a me ka paʻakikī.
Hōʻike ʻia ka mana seismic o ka ʻōnaehana pipeline e kona hiki ke hoʻololi i ka ʻili o ka ʻili. Hiki i ka haalulu seismic a i ʻole ka hoʻolaha ʻana o ka hawewe seismic ke hoʻopilikia i ka lepo e hōʻino i nā paipu palupalu loa. ʻO ka haki ʻana i ka hewa, ka hili ʻana, ka hoʻololi ʻana o ka lepo i ka lepo a me ka hopena a me/a i ʻole ka laha ʻana i ka ʻaoʻao, ka hoʻohaʻahaʻa ʻana a me ka piʻi ʻana o ka lepo e hiki ke hoʻonui i ka paʻakikī o ka ʻāina, ka hopena i ka pōʻino i nā wahi nui o nā paipu i kanu ʻia. Hōʻike ka papa B-1 i nā ʻikepili pili honua i ʻike ʻia a puni ka honua ma muli o ka hoʻololi mau ʻana o ka ʻāina.
Papa B-1 Ua ʻike ʻia ke koʻikoʻi o ka ʻāina ma muli o ka hoʻololi mau ʻana o ka ʻāina
ʻO ka nui o ke koʻikoʻi o ka lepo no nā pipeline ma waena o 0.05% a me 4.5%. Ma kahi hōʻike 2008 e ka American Electric Power Research Institute, ua hāʻawi ʻia nā ana hiki ke hoʻopaʻa ʻia o ka mea PE4710. Ma 50 ° F (10 ° C) wela, ʻo ka awelika tensile yield strain o ka paipu PE4710 he 9.9%, aʻo ka awelika tensile tensile he 206%. E neʻe ana ka paipu polyethylene ma ka pane ʻana i ka neʻe ʻana o ka honua, ma mua o ka pale ʻana i nā ukana e hiki ai ke haki nā paipu ʻoʻoleʻa a palupalu. I ka nui o nā hanana seismic, e pio ka paipu polyethylene (HDPE) kiʻekiʻe i hoʻopaʻa ʻia (welded), akā ʻaʻole e haki a hoʻokaʻawale paha (hoʻohui ʻole ʻia), no laila e mālama i kahi lako wai maʻamau. Pono e hoʻomaopopo ʻia ʻo nā pilina a pau o nā paipu PE me nā hale ʻē aʻe, nā hale ancillary a me nā ʻāpana hiki ke kau ʻia i nā ukana ʻokoʻa kiʻekiʻe. Pono e hoʻolālā maikaʻi ʻia ka pilina o kēia mau ʻāpana e hoʻemi i ka pilikia o ka haki.
ʻO ka tensile yield strain o ka paipu PE4710 ma kahi o ʻelua ʻelua o ke koʻikoʻi o ka ʻāina i hana ʻia e ka nui kiʻekiʻe i ʻike ʻia, a ʻo ke koʻikoʻi hope loa o PE4710 ʻoi aku ma mua o 40 mau manawa o ka peak ground strain. ʻO ka hana i loaʻa ma ka helu ʻana o ka manaʻo e kūlike me ka hoʻohana ʻana i ka pipeline polyethylene i ke ōlaʻi. Ua hana maikaʻi ka laina wai wai HDPE i wiliwili ʻia i ke ōlaʻi. Hāʻawi ka papa B-2 i nā ʻike ʻāpana o nā olai i hala ma Iapana (Omuro a me Himono, 2018).
Papa B-2 ʻIke ʻia nā ʻikepili i nā olai i hala ma Iapana
Pono e loiloi ʻia ka hana seismic o nā pipeline, me ka paʻakikī, ka hiki ʻana o ke axial strain, ka ʻae ʻia ʻana o ka radius kuʻi, ka ikaika hui, ke kūpaʻa a me ke kūlana pipeline e kū nei. Hōʻike ka helu nui o ka ʻike seismic e hiki i nā pipelines wai nui HDPE e like me nā kūlana paipu ASTM ke mālama i ka hana maʻamau ma lalo o ka hapa nui o nā kūlana haʻahaʻa seismic. Ke kiʻekiʻe nā koi hana seismic o ka paipu nui wai, pono e noʻonoʻo ʻia ka hoʻohana ʻana i nā paipu HDPE welded, no ka mea ʻoi aku ka hilinaʻi o ka hana seismic o nā paipu HDPE, a hiki iā lākou ke hoʻololi i nā ʻano like ʻole o ka ʻāina i hana ʻia e nā ōlaʻi a mālama i ka hana maʻamau.
CHUANGRONGis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Ka manawa hoʻouna: Mar-06-2025
