Kwezokwakha kanye nobunjiniyela bomphakathi, Ukukhetha kwezinto ezibonakalayo kubalulekile ukuqinisekisa ubuqotho kanye nokuphila isikhathi eside kwesakhiwo. Indwangu eyodwa ehlonishwa kakhulu embonini yipayipi le-ASTM A252. Ukucaciswa kuhlanganisa ama-cylindrical, ama-loll odongeni wensimbi amapayipi, okubalulekile ezinhlobonhlobo zezicelo, ikakhulukazi ku-Foundation Engineering. Kule bhulogi, sizoshona ngokujulile ekucacisweni okusemqoka kanye nokusetshenziswa kosayizi wepayipi we-ASTM ngenkathi kuqokomisa amakhono omkhiqizi oholayo asuselwa esifundazweni saseCangzhou, eHebei.
Ukucaciswa okuyinhloko kwamapayipi we-ASTM A252
I-ASTM A252 iyincazelo ejwayelekile echaza izidingo zezinqwaba zepayipi zensimbi ezingenamthungo. Lawa mapayipi enzelwe ukusetshenziswa njengamalungu ahlala njalo emthwalweni noma amagobolondo ezinqwaba ukhonkolo. Ukucaciswa okubalulekile kwe-ASTM A252 kufaka:
1 Ibanga lezezinto
2. Usayizi: Amapayipi we-ASTM A252 ayatholakala ngokuhlukahlukahlukahlukana kodonga, okuvumela ukuguquguquka ekwakhiweni nasekusetshenzisweni. Lawa mapayipi ayatholakala ngamadayimitha asukela kumasentimitha ayi-6 kuye kumasentimitha angama-60 ukuze ahlangabezane nezidingo ezahlukahlukene zephrojekthi.
3I-ASTM A252 PIPEingakhiqizwa i-welded noma engenamthungo, ukuhlinzeka ngezinketho ezisuselwa kwizidingo ezithile zephrojekthi yakho. Ipayipi le-welded ngokuvamile liyabiza kakhulu, kanti ipayipi elingenamthungo linikeza amandla amakhulu nokwethembeka.
I-4. Ukumelana nokugqwala: Kuya ngohlelo lokusebenza, amapayipi e-ASTM A252 angahlanganiswa noma aphathwe ukuthuthukisa ukumelana nawo, aqinisekise ukusetshenziswa kwesikhathi eside ngisho nasezindaweni ezinokhahlo.
Izicelo ze-ASTM A252
Ukuguquguquka okuhlukahlukene kwe-ASTM A252 Pipe kwenza ukuthi ilungezinhlobonhlobo zezicelo, kufaka phakathi:
- I-Foundation Piles: Lawa mapayipi ajwayele ukusetshenziswa njengezinqwaba zesisekelo emisebenzini yokwakha, enikeza ukwesekwa okudingekayo ezakhiweni, amabhuloho, nezinye izakhiwo.
- Izakhiwo zasolwandle: Amapayipi e-ASTM A252 alungele ukusetshenziswa ezindaweni zasolwandle futhi angasetshenziswa ekwakhiweni kwama-docks, ama-piers, namapulatifomu asogwini.
- Ukugcina izindonga: amandla nokuqina kwalawa mapayipi kubenze bakwazi ukusetshenziswa ekugcinweni kwezindonga, ezisiza ukuqinisa inhlabathi nokuvimbela ukuguguleka.
- I-Cast-In-Bear Concrete Piles: Uma isetshenziswa njenge-casing ye-cast-in-inqwaba yezinkomba ekhonkolo,I-ASTM A252Ipayipi lihlinzeka ngohlaka oluqinile oluthuthukisa ubuqotho bezinhlaka zokhonkolo.
Umkhiqizi oholayo eCongzhou
Umkhiqizi owaziwayo osesifundazweni saseCangerzhou, Hebei, ubelokhu ekhiqiza amapayipi aphezulu we-ASTM A252 selokhu asungulwa ngo-1993. Inkampani ihlanganisa indawo engamamitha-skwele angama-350 wezigidi ezingama-RMB 680, futhi isebenzisa cishe 680 abasebenzi abanamakhono. Umenzi uzibophezele ekuhlinzekeni imikhiqizo ehlangabezana namazinga aqinile asezingeni, eqinisekisa ukuthi amapayipi ayo e-ASTM A252 athembekile futhi ahlala isikhathi eside ezinhlobonhlobo zezicelo.
Ngokugxila ekususweni okusha nasekwanelisekeni kwamakhasimende, inkampani isibe umholi wezimboni, ukuhlinzeka ngezixazululo zangokwezifiso ukufeza izidingo ezihlukile zamakhasimende ayo. Ngezakhiwo zikahulumeni kanye nabasebenzi abanolwazi, bayakwazi ukukhiqiza amapayipi ezincazelo eziphakeme kakhulu, benza ukuba abe ngumlingani omethembayo wamaphrojekthi wokwakha kanye nobunjiniyela.
Ekuphetheni
Ekuphetheni, amapayipi e-ASTM A252 ayingxenye ebalulekile yokwakhiwa kwanamuhla, enikeza imininingwane ebalulekile ehlangabezana nezidingo zezicelo ezahlukahlukene. Ngomenzi odumile eCanggzhou akhiqiza la mapayipi, imboni ingathembela ezintweni ezisezingeni eliphakeme ukuqinisekisa ukuphepha nokuqina kwesakhiwo. Noma ngabe isetshenziselwa i-Foundation Engineering, izakhiwo zasolwandle noma ukugcina izindonga, amapayipi e-ASTM A252 angukukhetha okubalulekile konjiniyela nabakhi.
Isikhathi sePosi: Feb-11-2025