Okokuqala, njengoba ubuchwepheshe bokwakha umqulu buthuthuka, umshini wokwenza umqulu we-beam highway guardrail uthuthukisiwe ukuze ukhiqize izinsimbi zokugada ngensimbi enobubanzi obungu-482mm nogqinsi obungu-2-4mm.Abantu bafaka ama-guardrails njengezingxenye zokuphepha eceleni komgwaqo noma izinhlangothi ezimbili zomgwaqo omkhulu noma umgwaqo omkhulu.Futhi-ke, amazwe ahlukene angase abe nezindinganiso ezihlukene zamareyili aqaphayo, nokho izinguquko ezincane kuphela ekubunjweni noma kubukhulu bephrofayili okubonisa, ngakho-ke, yonke imishini yokwakhiwa kwamagagasi angu-2 noma i-w beam highway guardrail roll inemisebenzi efanayo kakhulu, kanye nenqubo yokusebenza.
Lo mshini osetshenziselwa ukubhoboza, ukwakha nokusika ipuleti likathayela onguthelawayeka, elisetshenziswa kakhulu ebhulohweni, ekwakhiweni komgwaqo omkhulu, i-Power Culvert, i-culvert yomgwaqo omkhulu, ukwakhiwa kwengqalasizinda njll. Ojantshi bomgwaqo omkhulu babekwe eceleni komgwaqo ukuze kuvinjwe noma kunciphe. ukulahlekelwa okubangelwa izingozi zomgwaqo.Izithiyo zokuphahlazeka noma ojantshi bonogada bomgwaqo zibaluleke kakhulu kangangokuba izwe ngalinye lizozisebenzisa lapho lakha umgwaqo omkhulu.Ngakho-ke, umshini wokwenza umqulu onguthelawayeka uzofaneleka isikhathi sethu ukuze sazi.