Ekwakhiweni nasekubunjiniyeleni bokwakha, ukukhethwa kwezinto kubalulekile ukuqinisekisa ubuqotho kanye nobude besakhiwo. Enye yezinto ezihlonishwa kakhulu embonini yipayipi le-ASTM A252. Imininingwane ihlanganisa izinqwaba zamapayipi ensimbi odongeni oluyindilinga, ezibalulekile ezinhlotsheni ezahlukene zokusebenza, ikakhulukazi kubunjiniyela besisekelo. Kule bhulogi, sizohlola ngokujulile imininingwane ebalulekile kanye nokusetshenziswa kosayizi bamapayipi e-ASTM A252 ngenkathi sigqamisa amakhono omkhiqizi ohamba phambili oseCangzhou, eSifundazweni saseHebei.
Imininingwane eyinhloko yamapayipi e-ASTM A252
I-ASTM A252 iyincazelo ejwayelekile echaza izidingo zamapayipi ensimbi ahlanganisiwe futhi angenamthungo. Lawa mapayipi aklanyelwe ukusetshenziswa njengamalungu ahlala njalo athwala imithwalo noma njengamagobolondo amapayipi ekhonkrithi afakwe endaweni. Imininingwane ebalulekile ye-ASTM A252 ifaka:
1. Ibanga Lezinto: Imininingwane ifaka phakathi amazinga amathathu ensimbi: Ibanga 1, Ibanga 2, kanye neBanga 3. Ibanga ngalinye linesidingo samandla okukhiqiza esihlukile, kanti iBanga 3 linamandla okukhiqiza aphezulu kakhulu futhi lifanele ukusetshenziswa kwemisebenzi enzima.
2. Usayizi: Amapayipi e-ASTM A252 atholakala ngobukhulu obuhlukahlukene bodonga, okuvumela ukuguquguquka ekwakhiweni nasekusetshenzisweni. Lawa mapayipi atholakala ngobubanzi obusukela kumasentimitha angu-6 kuya kwangu-60 ukuze ahlangabezane nezidingo ezahlukahlukene zephrojekthi.
3. Izinketho ezishiselwe futhi ezingenamthungo:Ipayipi le-ASTM A252ingakhiqizwa ishiselwe noma ingenamthungo, inikeze izinketho ngokusekelwe ezidingweni ezithile zephrojekthi yakho. Ipayipi elishiselwe ngokuvamile lingabizi kakhulu, kanti ipayipi elingenamthungo linikeza amandla nokuthembeka okukhulu.
4. Ukumelana nokugqwala: Kuye ngokusetshenziswa, amapayipi e-ASTM A252 angambozwa noma aphathwe ukuze kuthuthukiswe ukumelana kwawo nokugqwala, okuqinisekisa ukusetshenziswa kwesikhathi eside ngisho nasezindaweni ezinzima.
Izicelo Zepayipi le-ASTM A252
Ukuguquguquka kwepayipi le-ASTM A252 kwenza lifaneleke ezinhlotsheni eziningi zezicelo, okuhlanganisa:
- Izinqwaba Zesisekelo: Lawa mapayipi avame ukusetshenziswa njengezinqwaba zesisekelo kumaphrojekthi okwakha, enikeza ukwesekwa okudingekayo kwezakhiwo, amabhuloho, nezinye izakhiwo.
- Izakhiwo Zasolwandle: Amapayipi e-ASTM A252 afaneleka kahle ukusetshenziswa ezindaweni zasolwandle futhi angasetshenziswa ekwakhiweni kwamachweba, ama-piers, kanye namapulatifomu asogwini lolwandle.
- Izindonga Ezigcina Umswakama: Amandla nokuqina kwala mapayipi kwenza afanelekele ukusetshenziswa ezindongeni ezigcina umswakama, okusiza ekuqiniseni inhlabathi futhi kuvimbele ukuguguleka komhlabathi.
- Izinqwaba Zekhonkrithi Ezifakwe Endaweni: Uma zisetshenziswa njengekhava yezinqwaba zekhonkrithi ezifakwe endaweni,I-ASTM A252ipayipi linikeza uhlaka oluqinile oluthuthukisa ubuqotho besakhiwo sekhonkrithi.
Umkhiqizi Ohamba phambili eCangzhou
Umkhiqizi odumile oseCangzhou, eSifundazweni saseHebei, ubelokhu ekhiqiza amapayipi e-ASTM A252 asezingeni eliphezulu selokhu asungulwa ngo-1993. Le nkampani ihlanganisa indawo engamamitha-skwele angu-350,000, inempahla engu-RMB 680 million, futhi iqasha abasebenzi abanamakhono ababalelwa ku-680. Umkhiqizi uzibophezele ekuhlinzekeni ngemikhiqizo ehlangabezana nezindinganiso zekhwalithi eziqinile, eqinisekisa ukuthi amapayipi ayo e-ASTM A252 athembekile futhi ahlala isikhathi eside ezinhlotsheni ezahlukene zokusebenza.
Ngokugxila ekusunguleni izinto ezintsha kanye nokwaneliseka kwamakhasimende, inkampani isibe ngumholi embonini, ihlinzeka ngezixazululo ezenziwe ngokwezifiso ukuze ihlangabezane nezidingo ezihlukile zamakhasimende ayo. Njengoba inezindawo ezisezingeni eliphezulu kanye nabasebenzi abanolwazi, bayakwazi ukukhiqiza amapayipi ngezimfuneko eziphezulu, okubenza babe ngumlingani othembekile wamaphrojekthi okwakha nobunjiniyela.
Ekuphetheni
Ekuphetheni, amapayipi e-ASTM A252 ayingxenye ebalulekile yokwakha kwesimanje, anikeza imininingwane ebalulekile ehlangabezana nezidingo zezinhlelo zokusebenza ezahlukahlukene. Njengoba kunomkhiqizi odumile eCangzhou okhiqiza la mapayipi, imboni ingathembela ezintweni ezisezingeni eliphezulu ukuqinisekisa ukuphepha nokuzinza kwesakhiwo. Kungakhathaliseki ukuthi asetshenziselwa ubunjiniyela besisekelo, izakhiwo zasolwandle noma izindonga zokugcina, amapayipi e-ASTM A252 ayisinqumo esibalulekile konjiniyela nabakhi.
Isikhathi sokuthunyelwe: Feb-11-2025