Xa kuziwa kubunjineli bokwakha kunye nobunjineli boluntu, ukukhethwa kwezinto ezibonakalayo kubalulekile ekuqinisekiseni ukuthembeka kunye nokuphila ixesha elide kwesakhiwo. Enye yezinto ezinjalo eziye zafumana udumo oluqinileyo kwishishiniI-ASTM A252 iBanga lesi-2Iimfumba zemibhobho. Le bhlog iya kuphonononga iinkcukacha, iipropati, kunye neemfuno zokumakishwa kwe-ASTM A252 yeBanga lesi-2 ukufumana ingqiqo ebanzi ngokubaluleka kwayo kwiiprojekthi zokwakha.
Yintoni i-ASTM A252 yeBanga lesi-2?
I-ASTM A252 yinkcazo esemgangathweni yeemfumba zentsimbi ezidityanisiweyo kunye nezingenamthungo zokusetyenziswa kwesiseko. IBakala 2 lelinye lamabanga amathathu acaciswe kulo mgangatho, iBakala 1 lilelona lisezantsi lize iBakala 3 libe lelona liphezulu ngokwamandla esivuno. Iimfumba ze-tubula ze-ASTM A252 zeBanga lesi-2 zenzelwe ukubonelela ngokulinganisela kwamandla kunye ne-ductility, okwenza ukuba zilungele usetyenziso oluhlukeneyo, kubandakanywa iziseko ezinzulu, izakhiwo zaselwandle, kunye nezinye iimeko zokuthwala imithwalo.
Iipropati eziphambili ze-ASTM A252 iBanga lesi-2 ziquka ubuncinci bamandla okuvelisa i-35,000 psi kunye namandla amancinci angama-60,000 psi. Ezi zakhiwo ziqinisekisa ukuba iimfumba ziyakwazi ukumelana nemithwalo ebalulekileyo kunye noxinzelelo, zizenza zilungele ukusetyenziswa kwiindawo ezinomngeni.
I-ASTM A252 yeBanga lesi-2 iPipe Piles yokuMakisha iimfuno
Inkalo ebalulekileyo yeemfumba ze-ASTM A252 zeBanga lesi-2 yimfuneko yokumakishwa okufanelekileyo. Ingqumba nganye mayiphawulwe ngokucacileyo ukunika ulwazi olubalulekileyo malunga nemveliso. Oku kumakishwa kubalulekile ekulandeleleni, ukuqinisekiswa komgangatho, kunye nokuthotyelwa kwemigangatho yoshishino. Ezi nkcukacha zilandelayo mazifakwe xa kumakishwa:
1.Igama lomenzi okanye ibhrendi: Oku kuchonga umenzi wengqumba, iqinisekisa ukuba umsebenzisi unokukhangela imveliso emva komthombo wayo.
I-2.Inombolo yobushushu: Inombolo yobushushu sisiphawuli esikhethekileyo esinikezelwe kwibhetshi ethile yentsimbi. Ivumela ukuba imvelaphi kunye neempawu zezinto eziphathekayo zilandelwe, okuyimfuneko ekulawuleni umgangatho.
3. Inkqubo yomvelisi: Oku kubonisa indlela esetyenziswayo ukuvelisa imfumba, nokuba i-welded okanye ingenamthungo. Ukuqonda inkqubo yokuvelisa kunceda ekuvavanyeni iimpawu zokusebenza zemfumba.
Uhlobo lwe-4.Spiral Joint: Uhlobo lwejoyinti ejikelezayo esetyenziswa kwiimfumba yombhobhokufuneka imakishwe, ukuba ikhona. Olu lwazi lubalulekile ekuqondeni imfezeko yesakhiwo semfumba.
5.Idayamitha yaNgaphandle: Idayamitha yangaphandle yengqumba kufuneka iphawulwe ngokucacileyo njengoko iyimilinganiselo ebalulekileyo yofakelo nokubalwa komthwalo.
6.Ubukhulu bodonga lwegama: Ubukhulu bodonga lwemfumba ngomnye umlinganiselo obalulekileyo ochaphazela amandla ayo kunye nomthamo wokuthwala.
7. Ubude kunye nobunzima ngobude: Ubude obupheleleyo kunye nobunzima ngobude bengqumba kufuneka buchazwe. Olu lwazi luyimfuneko kulungiselelo nocwangciso lofakelo.
8.Igama elicacisiweyo neBakala: Okokugqibela, ukumakishwa makubandakanye igama elicacisiweyo (ASTM A252) kunye nebakala (Grade 2) ukuqinisekisa ukuthotyelwa kwemigangatho yoshishino.
Ukuququmbela
I-ASTM A252 yeBanga lesi-2 iiPipe Piles yinxalenye ebalulekileyo yolwakhiwo lwangoku, inika amandla ayimfuneko kunye nokuqina kwezicelo ezahlukeneyo. Ukuqonda ukucaciswa kunye neemfuno zokumakisha kubalulekile kwiinjineli, iikontraka, kunye nabaphathi beeprojekthi ukuqinisekisa ukuba basebenzisa izixhobo ezichanekileyo kwiiprojekthi zabo. Ngokuthobela le migangatho, ishishini lokwakha linokugcina izenzo ezikumgangatho ophezulu kunye nokuqinisekisa ukhuseleko kunye nobomi obude bezakhiwo ezakhiwe kula malungu esiseko.
Ixesha lokuposa: Dec-10-2024