Amathiphu Okusebenzisa Izingxenye Zensimbi Ye-Cast ku-Rail Transit

Ukukhethwa Kwezinto Ezisetshenziswayo Nezinto Ezibalulekile
Izingxenye zensimbi zokuthutha umzila wesitimela ikakhulukazi zihlanganisa insimbi empunga (efana ne-HT200, HT250, HT300) kanye nensimbi eyi-ductile cast (njenge-QT450, QT500, QT600, QT700). Ngenxa yokumelana nokuguga okungcono kanye nokuguqulwa okuncane, i-ductile cast iron isetshenziswa kakhulu ezimeni ezinezidingo zekhwalithi ephezulu.

Insimbi-enamandla aphezulu (njenge-HT200-300) ivamise ukuba nobulukhuni bokusebenza be-HB170-240. Ngemuva kokufakelwa kokufakelwa (i-600-700 degree) nokuguga kwemvelo (iminyaka engu-2-3), kungaqinisekisa ukunemba okuzinzile nokumelana nokugqoka.

Amasu okufaka nokulawula ukunemba
Ukufakwa kwama-cast steel ground rails (njengama-T-ama-slot ground rails) kufanele kulandele izinqubo eziqinile ukuze kuqinisekiswe ukunemba.

Ukwelashwa Kwesisekelo Nokulungiswa: Iphansi lesitimela kufanele lihambisane eduze nomhlabathi ukuvimbela ukuguquguquka kokugoba ngaphansi komthwalo obangelwa izikhala. Lapho kulungiswa, amabhawodi okunweba ensimbi ye-M8 noma izipikili ezidutshuliwe zingamiswa ngokuvikelekile ngezikhathi ezingaba ngu-500-700mm ohlangothini lwangaphakathi lukajantshi.

Ileveli neGrouting: Sebenzisa-amapuleti ebhuloho anomumo kanye neleveli yomoya ukuze uthole ileveli yokuqala ye-ground rail njengesithenjwa, bese wenza izinguquko zokuqala ngokulandelana. Ngemva kwalokho, yenza i-grouting kasimende, futhi wenze ukulungisa kahle nokuhlola ngemva kokuphulukiswa.

Amazinga Anembile: Ngemva kokufaka, ukuchezuka okuvundlile phakathi kwanoma ibuphi ubude be-1m akufanele kudlule u-1mm, futhi ukuchezuka kobude obuphelele akufanele kudlule u-2mm; ukuchezuka okuvundlile ezindaweni ezihambisanayo phakathi komzila wesitimela akufanele kudlule u-1mm, futhi ukuchezuka kokuhambisana phakathi kwanoma yimuphi ujantshi ababili kufanele kube ngaphansi kuka-2mm.

Ukujula Kokushumeka: Ukujula okushunyekiwe kwesitimela saphansi kufanele kube ileveli noma ngo-3-5mm ukuphakama kunongqimba lomhlobiso ongaphezulu.