Izithiyo zokuphahlazeka ziyizingosi ezifakwe phakathi noma ezinhlangothini zombili zomgwaqo ukuvimbela izimoto ukuthi zingaphumi emgwaqeni noma zeqe i-median ukuvikela ukuphepha kwezimoto nabagibeli.
Umthetho wezomgwaqo wezwe lethu unezidingo ezintathu ezibalulekile zokufakwa kwezinsimbi zokuvikela ukushayisana:
(1) Ikholomu noma i- guardrail yesivikelo sokuphahlazeka kufanele ihlangabezane nezimfuneko zekhwalithi. Uma ubukhulu bayo bungahlangabezani nezidingo, ubukhulu bongqimba lwama-galvanized akwanele, futhi umbala awufani, kungenzeka ukuthi ubangele izingozi zomgwaqo.
(2) Ireyili yokuvikela ukushayisana izokhonjwa ngomugqa omaphakathi womgwaqo njengophawu lokuma. Uma ingaphandle lehlombe lomgwaqo wenhlabathi lisetshenziswa njengereferensi ye-stakeout, izothinta ukunemba kokuhlelwa kwekholomu (ngoba umbhede womgwaqo wenhlabathi awukwazi ukufana nobubanzi ngesikhathi sokwakhiwa). Ngenxa yalokho, ukuqondanisa kwekholomu kanye nesiqondiso somzila akuhambisani, okuthinta ukuphepha kwethrafikhi.
(3) Ukufakwa kwekholomu yesivikelo sokuphahlazeka kuzohlangabezana nezimfuneko zekhwalithi. Isikhundla sokufakwa kwekholomu kufanele sihambisane ngokuqinile nomdwebo wokuklama kanye nendawo yokuphakamisa, futhi kufanele ihambisane nokuqondisa komgwaqo. Lapho indlela yokumba isetshenziselwa ukungcwaba amakholomu, i-backfill izohlanganiswa ngezingqimba ngezinto ezinhle (ubukhulu bengqimba ngayinye akumele budlule u-10cm), futhi izinga lokuhlanganisa lokugcwaliswa emuva akumele libe ngaphansi kwalelo eliseduze elingaphazanyiswa. inhlabathi. Ngemva kokufakwa kwekholomu, sebenzisa i-theodolite ukuze uyilinganise futhi uyilungise ukuze uqinisekise ukuthi umugqa uqondile futhi ubushelelezi. Uma ukuqondisa kungenakuqinisekiswa ukuthi kuqondile futhi kushelelezi, nakanjani kuzothinta ukuphepha kwemigwaqo.
Uma ukufakwa komgoqo wokuphahlazeka kungajabulisa iso, kuzokwenza ngcono kangcono ukunethezeka kokushayela futhi kunikeze abashayeli isiqondiso esihle sokubuka, ngaleyo ndlela kunciphise ngempumelelo ukuvela kwezingozi nokulahlekelwa okubangelwa izingozi.
Isikhathi sokuthumela: Feb-11-2022
