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一、铁路重载运输的发展 铁路重载运输,始于美国。早在本世纪二十年代之前,美国运输煤炭的大宗散装货物列车,个别就达万吨以上。 自从美国发明了用无线电遥控后部补机同步运转操纵法(Locotrol)以后,在陡坡线路上正常运转的重型列车编挂辆数达到成百辆,在平缓线路上出现了挂车二、三百辆以上的超重型列车,重量由万吨左右至二、三万吨。
First, the development of heavy rail transport Heavy rail transport, began in the United States. As early as the twenties of this century, the United States transported bulk coal bulk cargo trains, which alone amounted to more than 10,000 tons. Since the United States invented the radio-controlled rear-end Locotrol, the number of heavy-duty trains operating on steep slopes has reached a few hundred, and two to three trailers have appeared on flat roads Overweight trains, weighing about 10,000 tons to two or three million tons.