Suav Standards
Nyob rau hauv Suav teb, muaj ntau lub teb chaws tus qauv rau manhole npog, xws li ib leeg - txheej, ob - txheej, cam khwb cia hlau, ductile hlau, composite, qhob, magnesium oxide, thiab lwm yam.
Raws li lub teb chaws tus qauv tshiab GB / T 23858-2009, Manhole npog lub peev xwm tuaj yeem muab faib ua pawg hauv qab no:
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias manhole npog lub peev xwm thiab lub peev xwm ntawm lub manhole npog los tiv thaiv tsheb tsheb tsis yog tib lub tswv yim.
Manhole npog lub peev xwm yog hais txog kev ntsuas siab ua nyob rau hauv ib cheeb tsam uas siv lub tshuab ntsuas siab, feem ntau 40 tons rau hnyav- lub luag haujlwm npog. Txawm li cas los xij, yog tias xav txog kev tsav tsheb, kev suav rau 5- qag hnyav- lub luag haujlwm tsheb yog: 5 axles x 40 tons=200 tons. Nyob rau hauv tag nrho lub tsheb hnyav ntawm 200 tons, qhov hnyav-lub luag haujlwm manhole npog tuaj yeem tiv taus lub nra.
Qee cov tuam txhab lag luam thov qhov kev ntsuas ntawm 80 tons rau lub tsheb thauj khoom. Yog tias muab faib los ntawm 5 axles, lub manhole npog lub peev xwm ntawm cov chaw tsim khoom yog: 80t / 5=16t, uas txhais tau hais tias lub manhole npog nws tus kheej tsuas muaj peev xwm ntawm 16 tons.
Raws li Tshooj 4 ntawm GB/T23858-2009 "Kev Tshuaj Xyuas Manhole Npog," manhole npog tau muab faib ua rau qib raws li lawv lub peev xwm thauj khoom:
Pawg 1: (Qhov tsawg kawg xaiv A15 hom): Cov siv tawv ntsuab, kev taug kev, thiab lwm qhov chaw uas txwv tsis pub tsav tsheb.
Pawg 2: (yam tsawg kawg xaiv B125): Cov kev taug kev, tsis yog - txoj kab tsheb loj, cov chaw nres tsheb me me, thiab cov chaw nres tsheb hauv av.
Pawg 3: (yam tsawg kawg xaiv C250): Cov chaw nyob, cov kev rov qab thiab txoj kev, cov cheeb tsam uas tsuas yog lub teeb tsav tsheb lossis tsheb me me taug kev, thiab tsis pub dhau 0.5m ntawm txoj kab thaiv ntawm ob sab ntawm txoj kev.
Pawg 4: (yam tsawg kawg xaiv D400): txoj kev hauv nroog loj, txoj kev loj, siab -txoj kev, thiab txoj kev loj.
Pawg 5: (Qhov tsawg kawg xaiv E600 hom): Chaw nres tsheb thauj khoom, chaw nres nkoj, thiab tshav dav hlau.
Pawg 6: (Qhov tsawg kawg xaiv F900 hom): Tshav dav hlau khiav.
Japanese Standards
Qib Engineering
Xyoo 1958, Nyij Pooj tau tsim cov qauv tsim nyog rau kev npog manhole, qhia cov cim tseem ceeb xws li tuab, khoom siv, thiab thauj khoom-cov kabmob muaj peev xwm. Cov qauv kev lag luam tam sim no xav kom cov npog manhole yuav tsum tau cam khwb cia los ntawm siab - lub zog ductile hlau, nrog ib tug tuab ntawm tsawg kawg yog 17 centimeters thiab ib tug luj ntawm tsawg kawg yog 40 kilograms.
