Cov hom phiaj tseem ceeb ntawm kev txhim kho seismic kev ua haujlwm ntawm cov dej muaj peev xwm, txhawm rau kom muaj peev xwm ua kom cov dej loj thiab cov chaw tseem ceeb hauv kev kub ntxhov; Qhov thib ob yog kom txo qis kev puas tsuaj ntawm cov raj xa dej los pab kho kom sai. Hauv lwm lo lus, thaum ntsib kev kub ntxhov, kev siv dej hauv dej yuav tsum muaj qhov yoog tau ntau dua.
Tiv thaiv cov dej tawg yog qhov tseem ceeb los tswj cov haujlwm ua haujlwm ib txwm ntawm cov khoom siv hluav taws xob. PE4710 (sib npaug rau Pe100) cov kav dej uas muaj qhov tshwm sim qis tshaj plaws ntawm kev nqus dej thiab xau dej ntawm txhua lub hom phiaj saum toj no.
Wave propagation thiab cov av nyob ib puag ncig yog qhov ua rau muaj kev puas tsuaj rau kev puas tsuaj. Vim tias muaj lub neej ntawm axial thiab khoov kev ntxhov siab, kev txav hauv av ua rau axial thiab khoov cov raj hauv raj. Cov ntaub ntawv nrog cov kev ntxhov siab ntau (kev lom zem uas muaj kev ntxhov siab) feem ntau muaj peev xwm muaj peev xwm tsawg. Cov khoom siv du cov ntaub ntawv los ntawm Polyethylene (PE) (kev ntxhov siab uas tau tso cai tsawg) muaj peev xwm deformation zoo thiab tawv.
Lub peev xwm seismic muaj peev xwm ntawm cov raj xa hluav taws xob yog xav txog los ntawm nws cov kev yoog raws li nplaim. Seismic tshee hnyo los yog seismic yoj propagation tuaj yeem ua rau muaj kev sib zog ua kom muaj kev puas tsuaj loj tshaj plaws. Txhaum kev tawg, av pob, av hloov mus rau cov av nkos thiab kev sib hais haum thiab rov ua kom muaj kev puas tsuaj rau cov khoom loj ntawm cov kav dej. Cov lus B-1 cov npe hauv av cov ntaub ntawv pom thoob ntiaj teb vim tias muaj kev deformation hauv av.
Cov lus B-1 tau pom hauv av los vim muaj av ruaj khov
Qhov uas yuav tsum tau muaj hauv av ib leeg rau cov raj xa hluav taws xob yog nruab nrab ntawm 0.05% thiab 4.5%. Hauv qib 2008 Daim Ntawv Tshaj Qhia los ntawm Asmeskas Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob, cov hom kev ntsuas muaj peev xwm ntawm PE4710 cov khoom tau muab. Nyob rau ntawm 50 ° F (10 ° C) kub, qhov nruab nrab lub txiaj ntsig lim ntawm Pe4710, thaum nruab nrab qhov kawg qhov kawg tensile yog 206%. Cov polyethylene yeeb nkab yuav txav nyob rau hauv teb rau cov lus tsa suab hauv av, ntau dua li resisting loads uas yuav ua rau muaj kev phom sij lossis tawg. Nyob rau hauv feem ntau cov seismic cov xwm txheej, welded (welded) siab ntom ntom polyethylene (HDPE) yuav khoov, tab sis yuav tsis muaj kev sib txuas (tsis muaj kev tswj hwm dej haus ib txwm muaj. Nws yuav tsum raug sau tseg tias txhua qhov sib txuas ntawm PE kav dej nrog lwm cov qauv qauv, cov vaj tse thiab cov khoom siv yuav raug rau cov khoom siv sib txawv. Kev sib txuas ntawm cov khoom no yuav tsum tau ua tib zoo npaj thiab tsim los txo kev pheej hmoo ntawm kev tawg.
Lub tsho tiv thaiv tensile phem ntawm PE4710 yeeb nkab yog kwv yees li ob zaug uas yog qhov kawg ntawm PE4710 yog ntau tshaj 40 zaug ntawm cov av siab av. Kev ua yeeb yam tau los ntawm theoretical suav yog sib xws nrog kev siv polyethylene raj xa dej hauv av qeeg. Welded HDPE KID eVER ua haujlwm tau zoo hauv av qeeg. Cov lus B-2 muab kev soj ntsuam ib nrab ntawm cov av qeeg dhau hauv Nyij Pooj (OMuro thiab Himono, 2018).
Cov lus B-2 pom thaum lub ntiaj teb yav dhau los hauv Nyij Pooj
Kev ua seismic ua tau ntawm cov raj xa dej yuav tsum tau ntsuas, suav nrog kev nruj, axial plees muaj peev xwm, lub zog sib koom tes, ruaj khov thiab cov pipeline uas twb muaj lawm. Coob tus ntawm cov seismic cov kev paub qhia tau tias HDPE cov khoom siv dej tseem ceeb nyob rau hauv cov kev ua haujlwm feem ntau raws li feem ntau seismic load tej yam kev mob. Thaum cov seismic kev xav tau ntawm cov pa dej tseem ceeb, thiab lawv tuaj yeem hloov kho ntawm cov av HDPE ntau dua, thiab lawv tuaj yeem hloov kho cov av hdpe ntawm av loj los ntawm av qeeg thiab ua haujlwm zoo.
Chuzegrongis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Lub sij hawm ncua: Mar-06-2025
