Iinjongo eziphambili zokuphucula ukusebenza kwe-seismic yemibhobho yonikezelo lwamanzi zimbini: enye kukuqinisekisa umthamo wokuhanjiswa kwamanzi, ukuthintela indawo enkulu yokulahleka koxinzelelo lwamanzi, ukuze ukwazi ukubonelela ngamanzi kumlilo kunye nezixhobo ezibalulekileyo kwimeko yongxamiseko; Okwesibini kukunciphisa umonakalo wombhobho ukuze kube lula ukulungiswa ngokukhawuleza. Ngamanye amazwi, xa ujongene neentlekele zenyikima, inkqubo yokubonelela ngamanzi kufuneka ibe nokuguquguquka okuphezulu.
Ukuthintela ukuqhawuka okukhulu kwamanzi kubalulekile ekugcineni ukusebenza okuqhelekileyo kwenkqubo yonikezelo lwamanzi. Inkqubo yepayipi ye-PE4710 (elingana ne-PE100) inowona mathuba aphantsi okugqabhuka kunye nokuvuza kwawo nawuphi na umbhobho wamanzi, onceda ukufezekisa zonke ezi njongo zingasentla.
Ukusasazwa kwamaza kunye nokuguqulwa komhlaba ngokusisigxina zezona zizathu ziphambili zomonakalo wemibhobho engcwatyiweyo. Ngenxa yobukho be-axial force kunye noxinzelelo lokugoba, ukunyakaza komhlaba kukhokelela kwi-axial kunye nokugoba kwiingxaki kwipayipi. Izinto eziphathekayo ezinobunzima obuphezulu (uxinzelelo oluphezulu oluvumelekileyo) ngokubanzi zinesakhono esilinganiselweyo sokukhubazeka. Izinto ze-ductile ezimele i-polyethylene (PE) (uxinzelelo oluphantsi oluvumelekileyo) zinekhono elihle lokuguqulwa kunye nokuqina.
Isakhono senyikima senkqubo yemibhobho ibonakaliswa kukuguquguquka kwayo kuxinzelelo lomphezulu. Ukushukuma kwenyikima okanye ukusasazwa kwamaza enyikima kunokubangela ubunzima emhlabeni ngokwaneleyo ukuba bonakalise neyona mibhobho isesichengeni. Ukuqhekeka kweempazamo, ukudilika komhlaba, ukuguquka komhlaba ube ludaka kunye nesiphumo sokuhlaliswa kunye/okanye ukusasazeka ecaleni, ukuthotywa komhlaba kunye nokuphakanyiswa kunokubangela ubunzima obukhulu bomhlaba, okukhokelela kumonakalo kwiindawo ezinkulu zemibhobho engcwatyiweyo. Itheyibhile B-1 idwelisa iinkcukacha zoxinzelelo olujongwe kwihlabathi jikelele ngenxa yoguquko olusisigxina lomhlaba.
Itheyibhile B-1 Kuqatshelwe ubunzima bomhlaba ngenxa yoguquko olusisigxina lomhlaba
Uluhlu olufunekayo loxinzelelo lomhlaba kwimibhobho luphakathi kwe-0.05% kunye ne-4.5%. Kwingxelo ye-2008 ye-American Electric Power Research Institute, imilinganiselo yomthamo we-PE4710 inikwe. Kumaqondo obushushu angama-50°F (10 ° C), umyinge wobunzima besivuno sombhobho we-PE4710 yi-9.9%, ngelixa i-avareji yoxinzelelo lokugqibela yi-206%. Umbhobho we-polyethylene uya kuhamba ngokuphendula ukunyakaza komhlaba, kunokuba uxhathise imithwalo enokubangela ukuba imibhobho eqinile okanye enqabileyo iphuke. Kwiimeko ezininzi ze-seismic, umbhobho we-welded (welded) we-high density polyethylene (HDPE) uya kugoba, kodwa awuyi kuphuka okanye ukwahlula (uxhulumaniso olungatywinwanga), ngaloo ndlela lugcina unikezelo lwamanzi oluqhelekileyo. Kufuneka kuqatshelwe ukuba zonke izidibaniso zemibhobho ye-PE kunye nezinye izakhiwo, izibonelelo ezincedisayo kunye namacandelo anokuthi axhomekeke kwimithwalo ephezulu yokwahlukana. Ukudibanisa kwezi nxalenye kufuneka kucwangciswe ngokucokisekileyo kwaye kulungiselelwe ukunciphisa umngcipheko wokuqhekeka.
Ubunzima besivuno sombhobho we-PE4710 buphantse buphindwe kabini kunobunzima bomhlaba obubangelwa bobona bukhulu bobukhulu obuqatshelweyo, kwaye uhlobo lokugqibela lwe-PE4710 lungaphezu kwama-40 olona xinzelelo luphezulu lomhlaba. Ukusebenza okufunyenwe ngokubala kwethiyori kuhambelana nokusetyenziswa kombhobho we-polyethylene kwinyikima. Umgca we-HDPE odityanisiweyo wokubonelela ngamanzi uqhube kakuhle kwinyikima. Itheyibhile B-2 inika iingqwalasela eziyinxalenye yeenyikima ezidlulileyo eJapan (Omuro and Himono, 2018).
Itheyibhile B-2 Idatha ebonwe ngexesha leenyikima ezidlulileyo eJapan
Ukusebenza kwenyikima kwemibhobho kufuneka kuvavanywe, kubandakanywa ukuqina, amandla e-axial strain, iradiyasi yokugoba evumelekileyo, ukomelela kwamalungu, uzinzo kunye nemeko ekhoyo yombhobho. Inani elikhulu lamava enyikima libonisa ukuba imibhobho engundoqo yonikezelo lwamanzi e-HDPE ngokuhambelana nemigangatho yothotho lwemibhobho ye-ASTM inokugcina ukusebenza okuqhelekileyo phantsi kweemeko ezininzi zomthwalo wenyikima. Xa iimfuno ze-seismic ze-seismic zombhobho omkhulu wokubonelela ngamanzi ziphezulu, ukusetyenziswa kwemibhobho ye-HDPE edibeneyo kufuneka kuthathelwe ingqalelo, kuba ukusebenza kweenyikima zemibhobho ye-HDPE kunokwethenjelwa ngakumbi, kwaye banokuziqhelanisa neentlobo ezahlukeneyo zomhlaba eziveliswa yinyikima kunye nokugcina ukusebenza okuqhelekileyo.
CHUANGRONGis 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
Ixesha lokuposa: Mar-06-2025
