长鸣划过寂静云岭带进近代工业文明——1910年之滇越铁路对云南的影响

1910年的滇越铁路．北起云南昆明，南抵河口，直入越南．止于海防。云南段长465公里。呼啸的列车．依南盘江蜿蜒．沿南溪河盘旋，沿途山大箐深．道路艰险曲折，坡陡弯急．桥隧相衔。昆明至河口全长不过400千余米，直线距离才300千余米．却宛若天梯，海拔高低落差竞达1807米．最大坡道31．5％0，最小曲线半径80米．曲线长度超过总长的一半以上．

The impact of Dianyue Railway to Yunnan in 1910

Dianyue railway which was built in 1910, started from Kunming Yunnan in the north, via Hekou in the south, directly into Vietnam, to Haifang. The Yunnan section was 465 km long. The train whizzed along Nanpanjiang and Nanxi. Kunming to Hekou was less than 4 million meters, however, the straight fine was only 300 minion meters, just like sky ladder, the gap from top to foot is 1807 meters and the maximum ramp is 31.5%, the minimum curve radius is 80 meters, the curve length exceeding more than half of the total length, however, the speed is of 30 km/h. This railway was designed by a Frenchmen 100 years ago, every inch of track agglomerated the flood of hard labor, each bridge and tunnel embodied the wisdom of engineering and technical personnel.