DN320 tsis yog tus lej xwb- nws yog lub hauv paus ntawm kev ruaj ntseg ntawm tus choj.
Thaum DN320 tej zaum yuav suav hais tias yog qhov nruab nrab - cov yeeb nkab loj hauv cov haujlwm zoo tib yam, hauv Huayang Steel Pipe's choj lub hauv paus cov phiaj xwm, nws xa cov pob zeb- kev ntseeg tau ruaj khov. Nyob rau hauv qhov kev qhia tshwj xeeb no peb niaj hnub tsim, lub taub sab nraud feem ntau tswj tau ib puag ncig 323.9mm, nrog phab ntsa thicknesses feem ntau ntawm 8mm txog 14mm. Qhov ntev ntawm 6m thiab 12m yog feem ntau, thiab batch - txiav ntev tsis muaj teeb meem. Cov khoom siv yog API 2B qib carbon steel lub rooj sib tham marine structural xav tau, muab lub zog siab thiab ua kom tag nrho cov kev pab cuam ntawm weld flaw detection. Rau cov choj hauv paus pawg, cov yam ntxwv tseem ceeb tshaj plaws yog lub zog compressive, seismic tsis kam, thiab ruaj khov- tsis yog cov ntsiab lus lag luam. Cov qualities no honed txhua hnub nyob rau hauv ntau lawm kab thiab nyob rau hauv shipping chaw.
Cov choj tsis xaiv lawv qhov chaw, tab sis cov kav hlau yuav tsum hloov mus rau lawv qhov chaw.
Cov pob zeb hauv paus yog qhov xav tau tshwj xeeb: cov dej hauv qab, cov pas dej, cov ntug dej hiav txwv, cov chaw siab - cua zones, saline- alkali xau... Cov xwm txheej hnyav dua, chav tsawg dua rau kev cuam tshuam hauv cov yeeb nkab zoo. Thaum peb nquag tsim cov kav dej raws li cov qauv kev sib ntsib xws li EN10219, cov txheej txheem txuas txuas txuas ntxiv xav tau cov kav dej uas muaj peev xwm tiv taus ob qho tib si raug thiab faus ntoo khaub lig-ib puag ncig. DN320 cov kav dej muaj kev siv siab compressive, nruab nrab qhov hnyav, ruaj khov tuav los ntawm pawg tsav tsheb, thiab tswj tau yooj yim dua ntawm kev nkag mus thiab rov qab. Ntau cov phiaj xwm choj peb tau ua tiav xav tau tom qab- tsim kev tiv thaiv corrosion rau lub neej ntev kev pab cuam -xws li ib qho - txheej FBE, txhim kho 3PE / 3LPE, lossis txawm tias dual - txheej txheej kev daws teeb meem. Peb lub chaw Mengcun tswj hwm tag nrho cov txheej txheem no kawg-mus rau- xaus rau hauv peb lub rooj cob qhia kev tiv thaiv corrosion thiab kev ua haujlwm sib sib zog nqus. Yooj yim tso: txuas hniav tsis tuaj yeem xaiv lawv qhov chaw, tab sis cov kav hlau yuav tsum hloov mus rau txhua qhov chaw xav tau.
Piling tsis yog "tsav mus rau hauv av" - nws yog hloov lub zog rau hauv av.
Lub hom phiaj ntawm cov choj hauv paus pawg tuaj yeem suav nrog hauv ib kab lus: kev nyab xeeb hloov lub zog los ntawm cov choj piers mus rau hauv av. DN320 cov kav dej feem ntau yog siv rau nruab nrab- kab kab hauv paus hauv paus hauv kev tsim kho choj, tshwj xeeb tshaj yog haum rau kev sib txuas cov pawg, cov kab hloov pauv, thiab kev txhawb nqa- cov pawg tiv thaiv hauv qab lub hau. Lawv muab ob qho tib si compressive thiab shear tsis kam. Nyob rau hauv pawg pawg layouts, lawv nquag ua haujlwm ua "piles" thiab "uplift-cov pab pawg tiv thaiv." Ib qho lus hais ntawm UT cov neeg soj ntsuam thiab cov qub tub rog nyob hauv peb lub rooj cob qhia mus: "Ib qho khoom siv vuam txhais tau tias tsis muaj kev txhawj xeeb thaum tsav tsheb; kev hla ruaj khov- ntu kom ntseeg tau tias kev nkag mus nyob twj ywm." Cov pob zeb hauv paus tsis yog "tsuas yog daig rau hauv av"-lawv hloov cov qauv tsim rau lub ntiaj teb. Yog li, cov kev ntsuas xws li hla-section, weld kev ncaj ncees, thiab elongation yuav tsum ua kom pom kev ruaj ntseg ntev, tsis yog ua raws qee lub sijhawm.
Tshaj li kev xa khoom, peb muab kev daws teeb meem thiab kev thaj yeeb ntawm lub siab.
Ntau cov phiaj xwm choj yuav xav tau cov kav hlau, tab sis qhov lawv xav tau tiag tiag yog "muaj peev xwm ua tiav." Peb lub peev xwm xa khoom sib xyaw ua ke muaj peev xwm ua tau zoo: Tshaj li cov kav dej hauv cov kav dej, peb muab kev ua tiav zoo li cov yeeb nkab kawg chamfering, pawg khau installation, welded reinforcement rings, flanged pawg cap interfaces, txhim khu kev tiv thaiv kev tiv thaiv, thiab lwm yam cim / positioning kab. Rau cov kev qhia tshwj xeeb xws li DN320 siv rau hauv cov choj hauv paus- qhov twg lub zog yog qhov tseem ceeb yam tsis muaj ntau dhau - qhov tseeb hauv kev ua haujlwm siab dhau los ua qhov tseem ceeb. Peb pab neeg ua haujlwm raws li qhov chaw tsim kho qhov chaw txhawb nqa: Tshaj li muab cov kav dej steel, peb muab cov lus pom zoo piling, txheej txheej, txiav - rau -ntev cov phiaj xwm, kev sib koom ua ke ntawm lub sijhawm xa khoom, thiab cov qauv tshuaj ntsuam xyuas cov qauv- pab lub xaib kom tsis txhob muaj kev cuam tshuam. Kev muab khoom yog tiag tiag, cov xwm txheej muaj tiag, thiab kev muaj peev xwm yog tiag tiag-Tshaj qhov khoom xa tuaj, peb xa kev thaj yeeb nyab xeeb.
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