Thaum nws los txog rau kev tsim kho thiab kev tsim kho vaj tse, kev xaiv cov khoom siv yog qhov tseem ceeb heev rau kev ua kom lub tsev ruaj khov thiab kav ntev. Ib qho khoom siv uas tau txais lub koob npe nrov hauv kev lag luam yogASTM A252 Qib 2Cov Yeeb Nkab. Cov blog no yuav nkag siab txog cov lus qhia, cov khoom, thiab cov cim uas yuav tsum tau ua ntawm ASTM A252 Qib 2 kom nkag siab txog nws qhov tseem ceeb hauv cov haujlwm tsim kho.
ASTM A252 Qib 2 yog dab tsi?
ASTM A252 yog tus qauv txheem rau cov hlau welded thiab seamless tubular piles rau kev siv hauv paus. Qib 2 yog ib qho ntawm peb qib uas tau teev tseg hauv tus qauv no, nrog rau Qib 1 yog qhov qis tshaj plaws thiab Qib 3 yog qhov siab tshaj plaws hauv cov nqe lus ntawm lub zog tso zis. ASTM A252 Qib 2 tubular piles yog tsim los muab qhov sib npaug ntawm lub zog thiab ductility, ua rau lawv haum rau ntau yam kev siv, suav nrog lub hauv paus tob, cov qauv marine, thiab lwm yam xwm txheej thauj khoom.
Cov yam ntxwv tseem ceeb ntawm ASTM A252 Qib 2 suav nrog qhov tsawg kawg nkaus yield zog ntawm 35,000 psi thiab qhov tsawg kawg nkaus tensile zog ntawm 60,000 psi. Cov yam ntxwv no ua kom ntseeg tau tias cov pawg tuaj yeem tiv taus cov loads thiab kev ntxhov siab loj, ua rau lawv zoo tagnrho rau kev siv hauv cov chaw nyuaj.
ASTM A252 Qib 2 Cov Yeeb Nkab Piles Cim Cov Kev Cai
Ib qho tseem ceeb ntawm ASTM A252 Qib 2 pawg yog qhov xav tau kev cim kom raug. Txhua pawg yuav tsum tau cim kom meej meej kom muab cov ntaub ntawv tseem ceeb txog cov khoom. Lub cim no yog qhov tseem ceeb rau kev taug qab, kev lees paub zoo, thiab kev ua raws li cov qauv kev lag luam. Cov ntsiab lus hauv qab no yuav tsum muaj nyob rau hauv lub cim:
1. Lub npe lossis hom ntawm lub chaw tsim khoom: Qhov no qhia txog tus neeg tsim khoom ntawm pawg khoom, kom ntseeg tau tias tus neeg siv tuaj yeem taug qab cov khoom rov qab mus rau nws qhov chaw.
2. Tus lej kub: Tus lej kub yog tus cim tshwj xeeb uas muab rau ib pawg hlau tshwj xeeb. Nws tso cai rau kev taug qab keeb kwm thiab cov yam ntxwv ntawm cov khoom siv, uas yog qhov tseem ceeb rau kev tswj xyuas zoo.
3. Cov Txheej Txheem Tsim Khoom: Qhov no qhia txog txoj kev siv los tsim cov pawg, txawm tias vuam lossis tsis sib txuas. Kev nkag siab txog cov txheej txheem tsim khoom pab hauv kev soj ntsuam cov yam ntxwv ua tau zoo ntawm pawg.
4. Hom Sib Koom Ua Ke: Hom sib koom ua ke siv rau hauvcov yeeb nkab pawgyuav tsum tau cim, yog tias siv tau. Cov ntaub ntawv no tseem ceeb heev rau kev nkag siab txog qhov ruaj khov ntawm lub pawg.
5. Txoj Kab Uas Siv Tau Sab Nraud: Txoj kab uas siv tau sab nraud ntawm lub pawg yuav tsum tau cim kom meej meej vim nws yog qhov tseem ceeb rau kev teeb tsa thiab kev xam qhov hnyav.
6. Qhov tuab ntawm phab ntsa: Qhov tuab ntawm phab ntsa ntawm pawg yog lwm qhov kev ntsuas tseem ceeb uas cuam tshuam rau nws lub zog thiab lub peev xwm nqa tau.
7. Qhov Ntev thiab qhov hnyav rau ib qhov ntev: Yuav tsum tau hais tag nrho qhov ntev thiab qhov hnyav rau ib qhov ntev ntawm lub pawg. Cov ntaub ntawv no yog qhov tseem ceeb rau kev npaj khoom thiab kev teeb tsa.
8. Lub Npe thiab Qib Kev Qhia Tshwj Xeeb: Thaum kawg, qhov cim yuav tsum muaj lub npe qhia tshwj xeeb (ASTM A252) thiab qib (Qib 2) kom ntseeg tau tias ua raws li cov qauv kev lag luam.
Xaus lus
ASTM A252 Qib 2 Cov Yeeb Nkab Piles yog ib qho tseem ceeb ntawm kev tsim kho niaj hnub no, muab lub zog thiab kev ruaj khov rau ntau yam kev siv. Kev nkag siab txog cov lus qhia tshwj xeeb thiab cov cim qhia yog qhov tseem ceeb rau cov engineers, cov neeg cog lus, thiab cov thawj coj haujlwm kom ntseeg tau tias lawv siv cov ntaub ntawv raug rau lawv cov haujlwm. Los ntawm kev ua raws li cov qauv no, kev lag luam kev tsim kho tuaj yeem tswj hwm cov kev coj ua zoo thiab xyuas kom meej tias muaj kev nyab xeeb thiab lub neej ntev ntawm cov qauv tsim los ntawm cov tswv cuab hauv paus no.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-10-2024