Iikhreyini zebhulorho kunye neekhreyini zegantry zombini zizixhobo zokuphakamisa ezisetyenziswa kumashishini ahlukeneyo ukuhambisa izinto ezinzima. Nangona zifana, kukho umahluko omkhulu phakathi kwezi zimbini ezenza zilungele ukusetyenziswa ezahlukeneyo.
Iikhreyini zeGantryZihlala zisetyenziswa kwiindawo zangaphandle ezifana neendawo zokulungisa iinqanawa, iindawo zokwakha kunye neendawo zokugcina iimpahla zikaloliwe. Zinezakhiwo ezinde ze-A-frame ezineemitha ezithe tye ezixhasa iinqwelo ezisuswayo. Ii-gantry cranes zenzelwe ukunqumla izinto okanye iindawo zokusebenza, zivumela ukuba zithuthe imithwalo enzima ngokulula kwindawo enkulu. Ukuhamba kwazo kunye nokuguquguquka kwazo kuzenza zilungele ukusetyenziswa ngaphandle apho kungekho sakhiwo senkxaso se-overhead crane ekhoyo.
Iikhreni zebhulorhozifakelwe kwindawo ephakamileyo yeenqwelo moya ngaphakathi kwesakhiwo okanye kwisakhiwo. Zisetyenziswa kakhulu kwiindawo zokugcina impahla, kwiindawo zokwenza imveliso kunye nemigca yokuhlanganisana ukuphakamisa nokuthutha izinto kwiindlela zeenqwelo moya. Iikhreyini ezingaphezulu zaziwa ngokusebenza kakuhle kwazo ekwandiseni indawo yomgangatho kunye nokulawula ngokuchanekileyo ukuhamba kwezinto ezinzima kwindawo elinganiselweyo.
Omnye womahluko ophambili phakathi kwezi ntlobo zimbini zeekhreyini kukwakheka kwazo kwenkxaso. Iikhreyini ze-gantry ziyazixhasa kwaye azidingi sakhiwo okanye isakhiwo esikhoyo ukuze zifakelwe, ngelixa iikhreyini eziphezulu zixhomekeke kwisakhelo sesakhiwo okanye kwiikholamu zenkxaso ukuze zifakelwe. Ukongeza, iikhreyini ze-gantry zihlala zisetyenziswa kwiindawo zangaphandle apho ukukwazi ukuhamba kunye nokuguquguquka kubalulekile, ngelixa iikhreyini eziphezulu zisetyenziswa kakhulu ngaphakathi endlwini kwimisebenzi yokuphakamisa nokuhambisa rhoqo.
Ngokuphathelele umthamo womthwalo, zombini ezi ntlobo zeekhreyini zinokuyilwa ukuphakamisa imithwalo enzima kakhulu, kodwa iimfuno ezithile zesicelo ngasinye ziya kumisela uhlobo olufanelekileyo lwekhreyini oluza kusetyenziswa.
Ixesha leposi: Epreli-24-2024