Xa kufikwa kulwakhiwo kunye nobunjineli bokwakha, ukukhethwa kwezinto kubalulekile ukuqinisekisa ukuthembeka kunye nobude bexesha lesakhiwo. Enye yezinto ezinjalo ezifumene udumo olukhulu kushishino yileI-ASTM A252 Ibanga lesi-2IiPipe Piles. Le blog iza kujonga iinkcukacha, iipropati, kunye neemfuno zokumakisha ze-ASTM A252 Grade 2 ukuze ifumane ukuqonda okubanzi ngokubaluleka kwayo kwiiprojekthi zokwakha.
Yintoni i-ASTM A252 Grade 2?
I-ASTM A252 yinkcazo eqhelekileyo yeepali zetyhubhu zentsimbi ezidityanisiweyo nezingenamthungo zokusetyenziswa kwesiseko. Ibanga lesi-2 lelinye lamanqanaba amathathu achaziweyo kulo mgangatho, apho iBanga loku-1 lilelona liphantsi kwaye iBanga lesi-3 lilelona liphezulu ngokwezinga lokuvelisa. Iipali zetyhubhu ze-ASTM A252 zeBanga lesi-2 zenzelwe ukubonelela ngokulinganisela kwamandla kunye nokuguquguquka, okwenza zifaneleke kwiintlobo ngeentlobo zezicelo, kubandakanya iziseko ezinzulu, izakhiwo zaselwandle, kunye nezinye iimeko ezithwala umthwalo.
Iimpawu eziphambili ze-ASTM A252 Grade 2 ziquka amandla okuvelisa angaphantsi kwama-35,000 psi kunye namandla okubopha angaphantsi kwama-60,000 psi. Ezi mpawu ziqinisekisa ukuba iinqwaba ziyakwazi ukumelana nemithwalo enzima kunye noxinzelelo, nto leyo ezenza ukuba zilungele ukusetyenziswa kwiindawo ezinzima.
Iimfuneko zokuMakisha iiPipe Piles ze-ASTM A252 zeBanga lesi-2
Inkalo ebalulekileyo yeenqwaba ze-ASTM A252 zeBanga lesi-2 kukufuneka kophawu olufanelekileyo. Inqwaba nganye kufuneka iphawulwe ngokucacileyo ukuze inike ulwazi olubalulekileyo malunga nemveliso. Olu phawu lubalulekile ekulandeleni umkhondo, ekuqinisekiseni umgangatho, nasekuthobeleni imigangatho yoshishino. Iinkcukacha ezilandelayo mazifakwe kuphawu:
1. Igama lomenzi okanye uphawu: Oku kuchonga umenzi wenqwaba, kuqinisekisa ukuba umsebenzisi unokulandelela imveliso ukuya kumthombo wayo.
2. Inombolo yobushushu: Inombolo yobushushu sisihlomelo esahlukileyo esabelwe iqela elithile lentsimbi. Ivumela ukuba kulandelelwe imvelaphi kunye neempawu zezinto, nto leyo ebalulekileyo kulawulo lomgangatho.
3. Inkqubo yoMvelisi: Oku kubonisa indlela esetyenzisiweyo ukuvelisa inqwaba, nokuba itshixiwe okanye ayinamthungo. Ukuqonda inkqubo yokuvelisa kunceda ekuvavanyeni iimpawu zokusebenza kwenqwaba.
4. Uhlobo lwe-Spiral Joint: Uhlobo lwe-spiral joint esetyenziswa kwiinqwaba yepayipikufuneka iphawulwe, ukuba ikhona. Olu lwazi lubalulekile ekuqondeni ubume besakhiwo senqwaba.
5. Ububanzi bangaphandle: Ububanzi bangaphandle benqwaba kufuneka buphawulwe ngokucacileyo njengoko buyinto ebalulekileyo ekubalweni kokufakwa kunye nomthwalo.
6. Ubukhulu bodonga oluqhelekileyo: Ubukhulu bodonga lwenqwaba lolunye umlinganiselo obalulekileyo ochaphazela amandla ayo kunye nomthamo wayo wokuthwala.
7. Ubude kunye nobunzima ngobude: Ubude kunye nobunzima obupheleleyo ngobude benqwaba kufuneka buchazwe. Olu lwazi lubalulekile ekucwangcisweni kwezinto kunye nokufakelwa kwazo.
8. Igama kunye neBanga leenkcukacha: Okokugqibela, uphawu kufuneka lubandakanye igama leenkcukacha (ASTM A252) kunye neBanga lesibini (iBanga lesi-2) ukuqinisekisa ukuthotyelwa kwemigangatho yoshishino.
Ukuququmbela
Iipayiphu ze-ASTM A252 zeBanga lesi-2 ziyinxalenye ebalulekileyo yokwakha kwanamhlanje, zibonelela ngamandla afunekayo kunye nokuqina kwiintlobo ngeentlobo zezicelo. Ukuqonda iimfuno zeenkcukacha kunye nokumakisha kubalulekile kwiinjineli, abakhi, kunye nabaphathi beeprojekthi ukuqinisekisa ukuba basebenzisa izixhobo ezifanelekileyo kwiiprojekthi zabo. Ngokulandela le migangatho, ishishini lokwakha linokugcina iindlela zokusebenza ezisemgangathweni ophezulu kwaye liqinisekise ukhuseleko kunye nobude bexesha lezakhiwo ezakhiwe kula malungu esiseko.
Ixesha leposi: Disemba-10-2024