Sababtoo ah xaddidaadda dhererka iyo kordhinta dhererka, daboolida tunneladu had iyo jeer waa caqabad hawl wadeenada.Sifooyinka tunnelku waxay xaddidaan hababka sida loo bixiyo caymiska.Tareennada dhulka hoostiisa mara ama tareennada ayaa caadi ahaan cidhiidhi ah, oo dhinac hoose leh;halka tunnel-ka waddooyinku u janjeeraan inay yeeshaan qol-qol weyn oo ballaadhan.Caadi ahaan, tunnel-yada waxaa lagu mashquulaa oo keliya xilliyada qaarkood;Sidaa darteed, sifada codsiga dabacsanaanta, wakhtiga fulinta degdega ah, iyo qiimaha jaban ayaa ka dhigay soo-celiyaha doorasho wanaagsan oo ah xalka daboolida calaamadaha tunnel-ka.
Sababo la xiriira sifada dhulka tunnel-ka, aad bay u adagtahay in isteeshinka soo baxaya ee saldhiga saldhiga uu dhex maro tunnelka ilaa saldhiga saldhiga loogu talagalay daboolida tunnelka.Sidaa darteed, tunnel-ka intooda badani waxay la kulmaan dhibaato caymis oo liidata.Ka sokow isticmaalka saldhigga saldhigga gaar ahaan daboolida tunnel-ka, Fiber Optic Repeater sidoo kale waa xalka ugu habboon ee daboolida tunnel-ka, halka ku celcelinta awoodda sare sidoo kale la hirgelin karo si loo hagaajiyo daboolka isha ee tunnelka.
Waqtiga boostada: Nov-23-2021