Cov hlau sheet piles, ua ib yam khoom siv txhawb nqa kev tsim kho uas muaj zog thiab yooj ywm, ua lub luag haujlwm tseem ceeb hauv kev txuag dej, kev tsim kho av tob, kev tsim kho chaw nres nkoj, thiab lwm yam. Lawv ntau hom, cov txheej txheem tsim khoom zoo heev, thiab kev siv thoob ntiaj teb ua rau lawv yog cov khoom siv tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab txhim kho kev ua haujlwm zoo hauv kev tsim kho. Tsab xov xwm no yuav muab kev tshuaj xyuas ntxaws ntxaws txog cov hom hlau sheet piles tseem ceeb, lawv qhov sib txawv, cov txheej txheem tsim khoom tseem ceeb, thiab qhov loj me thiab cov lus qhia dav dav, muab cov ntaub ntawv qhia txog kev tsim kho thiab cov neeg yuav khoom.
Cov hlau ntawv pawgraug faib ua pawg raws li cov duab txiav. Z- thiab U-hom steel sheet piles yog qhov kev xaiv tseem ceeb hauv kev tsim kho vim lawv muaj ntau yam kev siv thiab cov txiaj ntsig zoo tshaj plaws. Txawm li cas los xij, muaj qhov sib txawv tseem ceeb ntawm ob hom no hauv cov qauv, kev ua tau zoo, thiab cov xwm txheej ntawm kev siv:
Cov hlau phaj U-puabLawv muaj cov qauv zoo li txoj kab qhib uas muaj cov npoo xauv kom nruj, ua rau lawv hloov tau yooj yim rau cov kev xav tau loj hauv cov haujlwm engineering. Lawv cov khoom zoo heev ua rau lawv siv dav hauv cov haujlwm hydraulic siab (xws li kev tswj dej thiab kev txhawb nqa lub pas dej) thiab kev txhawb nqa lub hauv paus tob (xws li kev tsim kho hauv av rau cov tsev siab). Tam sim no lawv yog hom steel sheet pile uas siv ntau tshaj plaws hauv kev ua lag luam.
Cov hlau phaj zoo li tus ZLawv muaj qhov kaw, zigzag cross-section nrog cov phaj hlau tuab dua ntawm ob sab, ua rau muaj qhov modulus siab thiab qhov flexural stiffness siab. Qhov no tso cai rau kev tswj hwm qhov tseeb ntawm kev hloov pauv engineering thiab tsim nyog rau cov haujlwm siab nrog cov kev cai tswj hwm deformation nruj (xws li lub Hoobkas precision foundation qhov thiab kev tsim kho choj loj). Txawm li cas los xij, vim yog qhov nyuaj ntawm kev dov asymmetric, tsuas yog plaub lub tuam txhab thoob ntiaj teb muaj peev xwm tsim khoom, ua rau hom ntawv pawg no tsis tshua muaj.
Cov txheej txheem tsim cov hlau sheet piles ncaj qha cuam tshuam rau lawv cov kev ua tau zoo thiab cov ntawv thov. Tam sim no, kev dov kub thiab kev khoov txias yog ob txoj hauv kev tseem ceeb siv hauv kev lag luam, txhua tus muaj nws tus kheej lub hom phiaj sib txawv hauv cov txheej txheem tsim khoom, cov yam ntxwv ntawm cov khoom, thiab kev tso rau hauv daim ntawv thov:
Cov hlau kub dov ua pawgyog ua los ntawm cov hlau billets, cua sov rau qhov kub siab, thiab tom qab ntawd dov ua cov duab siv cov khoom siv tshwj xeeb. Cov khoom tiav lawm muaj qhov xauv siab thiab lub zog tag nrho siab, ua rau nws yog cov khoom ua thawj coj hauv cov haujlwm engineering. Royal Steel Group siv cov txheej txheem dov semi-continuous tandem los muab cov pawg U-puab nrog qhov dav ntawm 400-900mm thiab cov pawg Z-puab nrog qhov dav ntawm 500-850mm. Lawv cov khoom tau ua tau zoo heev ntawm Shenzhen-Zhongshan Tunnel, khwv tau lawv lub koob npe nrov ntawm "stabilising piles" los ntawm tus tswv project, qhia tag nrho qhov kev ntseeg siab ntawm cov txheej txheem dov kub.
Cov hlau phaj uas ua los ntawm txiasyog dov-ua nyob rau hauv chav tsev kub, tshem tawm qhov xav tau kev kho mob kub siab. Qhov no ua rau muaj qhov chaw tiav du thiab 30% -50% zoo dua corrosion tiv thaiv dua li cov pawg kub dov. Lawv yog tsim rau siv nyob rau hauv noo noo, ntug dej hiav txwv, thiab corrosion-yeej ib puag ncig (piv txwv li, kev tsim kho lub hauv paus qhov). Txawm li cas los xij, vim muaj kev txwv ntawm chav tsev kub-kub tsim cov txheej txheem, lawv cov cross-sectional rigidity yog qhov tsis muaj zog. Lawv feem ntau yog siv ua cov khoom siv ntxiv, ua ke nrog cov pawg kub dov kom zoo dua tus nqi project thiab kev ua tau zoo.
Cov hom hlau sheet piles sib txawv muaj cov qauv qhov ntev meej. Kev yuav khoom ntawm qhov project yuav tsum xav txog cov kev cai tshwj xeeb (xws li qhov tob ntawm kev khawb av thiab qhov hnyav ntawm kev thauj khoom) kom xaiv cov lus qhia tsim nyog. Cov hauv qab no yog cov qhov ntev uas feem ntau siv rau ob hom hlau sheet piles:
Cov hlau phaj U-puab: Cov qauv txheem feem ntau yog SP-U 400 × 170 × 15.5, nrog rau qhov dav txij li 400-600mm, tuab txij li 8-16mm, thiab ntev ntawm 6m, 9m, thiab 12m. Rau cov kev xav tau tshwj xeeb xws li kev khawb loj thiab tob, qee cov phaj U-puab kub tuaj yeem hloov kho kom ntev txog 33m kom ua tau raws li cov kev xav tau kev txhawb nqa tob.
Cov hlau ntawv zoo li tus Z: Vim muaj cov kev txwv ntawm cov txheej txheem tsim khoom, qhov loj me yog tus qauv, nrog rau qhov siab ntawm ntu ntawm 800-2000mm thiab tuab ntawm 8-30mm. Qhov ntev feem ntau yog ntawm 15-20m. Cov lus qhia ntev dua yuav tsum tau sab laj nrog cov chaw tsim khoom ua ntej kom paub tseeb tias ua tau cov txheej txheem.
Txij ntawm cov chaw nres nkoj sab hnub tuaj Es Xias mus rau cov chaw txuag dej hauv North America, cov hlau sheet piles, nrog rau lawv qhov kev hloov pauv tau, tau siv rau hauv ntau yam haujlwm thoob plaws ntiaj teb. Cov hauv qab no yog peb qhov kev tshawb fawb los ntawm peb cov neeg siv khoom, qhia txog lawv qhov txiaj ntsig zoo:
Qhov Project Nthuav Dav Chaw Nres Nkoj Philippine: Thaum lub sijhawm nthuav dav ntawm chaw nres nkoj hauv Philippines, qhov kev hem thawj ntawm cua daj cua dub los ntawm cua daj cua dub ntau zaus tau tshwm sim. Peb lub chaw haujlwm kev tshaj lij tau pom zoo kom siv cov hlau kub dov U-puab rau lub cofferdam. Lawv lub tshuab xauv nruj tau tiv taus qhov cuam tshuam ntawm cua daj cua dub, ua kom muaj kev nyab xeeb thiab kev nce qib ntawm kev tsim chaw nres nkoj.
Ib qho project kho dua tshiab ntawm lub chaw txuag dej hauv Canada: Vim yog lub caij ntuj no txias ntawm qhov chaw hub, cov av feem ntau yuav muaj kev hloov pauv ntawm kev ntxhov siab vim yog lub voj voog khov-thaw, uas xav tau kev ruaj khov siab heev. Peb lub chaw haujlwm kev tshaj lij pom zoo kom siv cov hlau kub dov zoo li Z rau kev txhawb nqa. Lawv lub zog khoov siab tuaj yeem tiv taus kev hloov pauv ntawm kev ntxhov siab ntawm av, ua kom ntseeg tau tias lub chaw txuag dej ua haujlwm ruaj khov mus ntev.
Ib qho project tsim kho vaj tse hlau hauv Guyana: Thaum lub sijhawm tsim kho lub hauv paus, qhov project yuav tsum tau tswj hwm qhov kev hloov pauv ntawm qhov nqes hav kom ntseeg tau tias muaj kev nyab xeeb ntawm lub tsev tseem ceeb. Tus neeg cog lus tau hloov mus rau peb cov hlau sheet piles uas tau tsim txias los txhawb lub hauv paus qhov nqes hav, ua ke lawv txoj kev tiv thaiv xeb nrog lawv txoj kev hloov pauv mus rau qhov chaw noo noo hauv zos kom ua tiav qhov project.
Txij ntawm cov chaw nres nkoj sab hnub tuaj Es Xias mus rau cov chaw txuag dej hauv North America, cov hlau sheet piles, nrog rau lawv qhov kev hloov pauv tau, tau siv rau hauv ntau yam haujlwm thoob plaws ntiaj teb. Cov hauv qab no yog peb qhov kev tshawb fawb los ntawm peb cov neeg siv khoom, qhia txog lawv qhov txiaj ntsig zoo:
Qhov project nthuav dav chaw nres nkoj hauv Philippine:Thaum lub sijhawm nthuav dav ntawm chaw nres nkoj hauv Philippines, qhov kev hem thawj ntawm cua daj cua dub los ntawm cua daj cua dub ntau zaus tau tshwm sim. Peb lub chaw haujlwm kev tshaj lij tau pom zoo kom siv cov hlau kub-kub U-puab rau lub cofferdam. Lawv lub tshuab xauv nruj tau zoo tiv taus qhov cuam tshuam ntawm cua daj cua dub, ua kom ntseeg tau tias kev nyab xeeb thiab kev nce qib ntawm kev tsim kho chaw nres nkoj.
Ib qho project kho dua tshiab ntawm lub chaw txuag dej hauv Canada:Vim yog lub caij ntuj no txias ntawm qhov chaw hub, cov av feem ntau yuav muaj kev hloov pauv ntawm kev ntxhov siab vim yog lub voj voog khov-thaw, uas xav tau kev ruaj khov siab heev. Peb lub chaw haujlwm kev tshaj lij pom zoo kom siv cov hlau kub dov zoo li Z los ua kom muaj zog. Lawv lub zog khoov siab tuaj yeem tiv taus kev hloov pauv ntawm kev ntxhov siab ntawm av, ua kom ntseeg tau tias lub chaw txuag dej ua haujlwm ruaj khov mus ntev.
Ib qho project steel structure hauv Guyana:Thaum lub sijhawm ua lub hauv paus, qhov project yuav tsum tau tswj hwm qhov kev hloov pauv ntawm qhov nqes hav kom ntseeg tau tias muaj kev nyab xeeb ntawm lub tsev tseem ceeb. Tus neeg cog lus tau hloov mus rau peb cov hlau sheet piles uas tau tsim txias los txhawb qhov nqes hav ntawm lub hauv paus, ua ke lawv txoj kev tiv thaiv xeb thiab lawv txoj kev hloov pauv mus rau qhov chaw noo noo hauv zos kom ua tiav qhov project.
Txawm nws yog ib qhov project txuag dej, project chaw nres nkoj, lossis kev txhawb nqa lub hauv paus, kev xaiv hom steel sheet pile, cov txheej txheem, thiab cov lus qhia tshwj xeeb yog qhov tseem ceeb rau kev ua kom zoo ntawm qhov project. Yog tias koj tab tom npaj yuav steel sheet piles rau koj qhov project, lossis xav tau cov lus qhia ntxaws ntxaws txog cov khoom, cov kev xaiv kho kom haum, lossis cov lus hais tshiab tshaj plaws, thov koj xav tiv tauj peb. Peb yuav muab cov lus qhia xaiv cov kws tshaj lij thiab cov lus hais raug raws li koj cov kev xav tau ntawm qhov project, kom ntseeg tau tias koj qhov project ua tiav zoo.
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