Qinghai Tibet railway to complete the seamless rail paving project – China Network-爱多vcd

The Qinghai Tibet Railway completed seamless rail replacement project – Beijing, China News Agency, Xining, September 14 (reporter Luo Yunpeng) 14, the reporter learned from the Qinghai Tibet railway company was informed that, after 7 years of Qinghai Tibet Railway seamless rail replacement project was completed before the operation in the train safety and comfort will be improved to a great extent. Qinghai Tibet railway is located in the hinterland of Qinghai Tibet Plateau, passing through the nature reserve, such as Hoh Xil, Sanjiang source and Qiangtang grassland. According to the Qinghai Tibet railway company, the Qinghai Tibet railway track (Golmud Lhasa section) with 25 meters long common rail, in order to prevent the thermal expansion and contraction, a gap is reserved between rail, passenger train heard BAM sound is the sound impact of wheel and rail interface, this impact not only on the rail head and the wheel have a greater wear, but also restricts the Tibet train speed, train ride comfort effect. It is understood that the Qinghai Tibet Railway seamless rail replacement project total investment of 1 billion 298 million yuan, a total of 7 years to complete the 82021 rail replacement for rail 1111 km, 25 meters long after the original common rail was replaced by a 500 meter long rail, rail replacement process using mobile pneumatic world advanced welding technology, through testing and the grinding process, to eliminate the gap between the rail joints, the final welded seamless line. (end)相关的主题文章: