Ua ntej-Kev npaj kev tsim kho
Pleev tsav tsheb rau guardrails tsis yog ib yam dab tsi koj tuaj yeem dhia ncaj nraim rau hauv. Kev npaj zoo tuaj yeem ua ob npaug rau kev tsim kho:
Site Survey: Ua ntej, nkag siab txog geological tej yam kev mob; cov av mos thiab cov pob zeb tawv tawv yuav tsum muaj kev sib txawv.
Layout thiab Positioning: Siv tag nrho cov chaw nres tsheb lossis cov kav hlau kom raug khij ntawm pawg ua haujlwm, nrog qhov sib txawv tsis tshaj 5cm.
Kev Tshuaj Xyuas Cov Khoom Siv: Cov roj hydraulic, roj diesel, thiab cov hlua hlau yog txhua yam tseem ceeb; kuaj lub tshuab rau 30 feeb ua ntej.
Kev lees txais cov khoom: Qhov yuam kev ntev ntawm cov guardrail pawg yuav tsum tswj tsis pub dhau ± 2 hli.
Cov txuj ci tseem ceeb rau Pile Tsav Kev Ua Haujlwm
Mastering cov lus qhia no yuav hloov koj pawg tsav tsheb mus rau hauv "steel pangolin":
Verticality Control: Siv ob-txoj kev theem los tswj lub cev pawg ntawm 90℃. 0℃Vertical Installation
Segmented Tsav Tsheb: Thaum ntsib cov txheej av tawv, txhua tus xovxwm downwards yuav tsum tsis pub tshaj 50cm.
Lub tswv yim txo kev poob siab: Txhim kho cov ntaub qhwv roj hmab rau ntawm pawg sab saum toj tuaj yeem txo cov suab nrov los ntawm 30%.
Kev tuav tsis zoo: Yog hais tias pawg misalignment tshwm sim, nres lub tshuab tam sim ntawd thiab siv jacks los kho nws.
Cov ntsiab lus tseem ceeb rau kev ua tiav thiab kev lees txais: Tsis txhob xav tias txhua yam ua tiav tom qab pawg tsav tsheb; Cov kev ua tiav no txiav txim siab qhov ua tiav lossis tsis ua tiav ntawm qhov project:
Kev ntsuas qhov siab: Siv qib los ntsuas; qhov siab sib txawv ntawm cov pawg uas nyob ib sab yuav tsum tsawg dua los yog sib npaug li 3 hli.
Tiv thaiv corrosion: Welded pob qij txha yuav tsum tau coated nrog anti- xeb xim; txheej thickness yuav tsum siab tshaj los yog sib npaug rau 200μm.
Kev ntxuav qhov chaw: Sau tag nrho cov seem hlau kom tsis txhob muaj kev pheej hmoo ntawm kev sib tsoo.
Impact Test: Randomly xaiv 5% ntawm pawg qhov chaw rau kev ntsuam xyuas qhov cuam tshuam.