Cov phooj ywg uas tau ua haujlwm rau cov chaw tsim kho paub tias qhov kev tsim kho ntug dej ntshai tshaj plaws yog dab tsi? Dej xau.
Thaum cov qhov sib nrug ntawm cov pawg tsis tuaj yeem kaw kom zoo, cov dej uas nqa cov av yuav nkag mus rau hauv. Lub qhov hauv paus ces hloov mus ua "qhov dej", thiab kev siv zog twj dej yuav ua tsis tiav. Lub sijhawm ua haujlwm yuav raug ncua ntxiv. Qhov no yog vim li cas ntau thiab ntau qhov haujlwm, thaum xaivCov Kav Dej Rau Kev Sib Txuas Lus, qhov tseem ceeb tshaj plaws yog "kev ua tau zoo ntawm kev kaw" ua qhov tseem ceeb tshaj plaws.
Cov hlau sheet piles ib txwm muaj los yog cov yeeb nkab puag ncig feem ntau muaj qhov sib txawv me me ntawm qhov sib koom ua ke vim yog kev hloov pauv ntawm kev tsim kho. Thaum raug dej siab lossis ntsib kev hloov pauv ntawm dej hiav txwv, qhov xau yog qhov tsis zam. Txawm li cas los xij, cov yeeb nkab piles tsim tshwj xeeb rau kev sib txuas sealing muaj cov qhov kaw thiab cov qauv xauv tshwj xeeb rau ob sab ntawm lub cev pile. Thaum lub sijhawm piling, ob lub yeeb nkab uas nyob ib sab yuav xauv ua ke, thiab nrog cov khoom siv tiv thaiv dej, lawv tuaj yeem ua tiav "tsis muaj xau kiag li".
Cia peb tham txog cov duab -Cov Yeeb Nkab Hlau Uas Muaj Cov Duab Cylindrical, uas tsuas yog cov kav hlau cylindrical xwb. Vim li cas nws thiaj li cylindrical? Qhov laj thawj yooj yim heev: Lub voj voog hla-seem muaj qhov sib npaug tshaj plaws hauv txhua qhov kev taw qhia. Thaum lub sijhawm piling, lub zog tau faib sib npaug, thiab nws tsis tshua muaj peev xwm hloov pauv. Tib lub sijhawm, qhov chaw voj voog muaj kev faib tawm ntawm kev sib txhuam hauv av, thiab lub peev xwm dais ib-pawg siab dua li cov kav dej plaub fab nrog tib qhov hla-seem. Thaum siv hauv cofferdams, nws tsis tsuas yog thaiv dej tab sis kuj dais qhov hnyav, ua tiav ob qho txiaj ntsig nrog ib qho kev daws teeb meem.
Peb lub Cangzhou Spiral Steel Pipe Group tau ua haujlwm hauv kev lag luam no tau ntau tshaj 30 xyoo (tsim muaj xyoo 1993, nrog rau lub peev xwm tsim khoom txhua xyoo ntawm 400,000 tons thiab cov cuab tam ntawm 680 lab yuan). Ib qho kev paub tob uas peb tau txais yog tias rau cov yeeb nkab hlau siv hauv lub cofferdam, ib tug yuav tsum tsis txhob tsuas yog xav txog qhov tuab ntawm phab ntsa thiab txoj kab uas hla, tab sis qhov tseeb ntawm kev ua tiav ntawm cov khoom sib txuas yog lub cim tseeb ntawm kev ncaj ncees. Yog tias lub tshuab xauv tsis sib xws me ntsis lossis qhov sealing groove yog 0.5 millimeters qis dua, nws yuav tsis tuaj yeem txuas nrog nruj thaum nws tau teeb tsa rau ntawm qhov chaw.
Yog li ntawd, lub sijhawm tom ntej koj tab tom tsim lub qhov dej lossis lub hauv paus tob, vim li cas ho tsis nug koj tus kheej cov lus nug no: Cov foob sib txuas ntawm cov yeeb nkab hlau cylindrical no puas ntseeg tau? Yog tias koj xaiv cov zoo, koj tuaj yeem txuag tau ntau lab daus las hauv cov nqi kho qhov xau yav tom ntej - qhov no tsis yog kev hais ua kom dhau, nws yog kev suav nyiaj tiag tiag ntawm qhov chaw tsim kho.
Lub sijhawm tshaj tawm: Plaub Hlis-17-2026