Why is the Qinghai-Tibet Railway called the magical heavenly road? Tell me your understanding.

In the construction, many difficulties such as altitude sickness, frozen soil and environmental protection have been overcome. It takes the longest time and the farthest distance. The hardships of engineering in this century are described by Tianlu. Tibet has always been a mysterious place with many religions and many nationalities. Along this railway, we can reach the place that touches the sky. Blue sky, white clouds and green grass are like fairyland on earth, and this road is the ladder to climb heaven.

The highest in the world is 1

The longest plateau railway

Total mileage of the whole line 1 142 km.

Jiela section of Qinghai-Tibet Railway is the longest plateau railway in the world. Starting from Nanshankou Station in Golmud City, there are towering snow-capped mountains, rivers, vast grasslands and lakes everywhere. This snow-capped iron vein runs through Kunlun Mountain, enters Hoh Xil, the largest "no man's land" in China, crosses Tuotuo at the source of the Yangtze River, crosses Tanggula Mountain, the highest point of the world railway, winds through the vast grassland in northern Tibet, and finally reaches Lhasa. Among them, the total mileage from Golmud to Lhasa is 1 142 km.

The Golmud-Lhasa section of the Qinghai-Tibet Railway is all over 3,000 meters above sea level, of which 965 kilometers are at 4,000 meters above sea level. At the groundbreaking ceremony of the Qinghai-Tibet Railway, state leaders once felt that the construction of the Qinghai-Tibet Railway, the plateau railway with the highest altitude and the longest route in the world, was an unprecedented great feat in the history of human railway construction.

The best 2 in the world

The longest mileage through frozen soil

The mileage of crossing the permafrost is 550 kilometers.

If "the longest plateau railway in the world" only puts the Qinghai-Tibet railway at the top of the world's length, then this second world may be more realistic, because the Qinghai-Tibet railway crosses permafrost with a mileage of 550 kilometers, which has overcome the frozen soil problem that has long plagued mankind in the history of railway road construction in the world.

The best 3 in the world

Create the highest speed of plateau railway

The speed of frozen soil area will reach 100 km per hour.

After the completion, the speed of Qinghai-Tibet Railway will reach 100 km in frozen soil section and 120 km in non-frozen soil section, which is the highest speed of railway trains in plateau frozen soil in the world at present.

Railways have been built in permafrost regions all over the world for more than 100 years, but the disease rate of railways in permafrost regions has been very high, with a speed of only 60 to 70 kilometers per hour. It is reported that the line disease rate of Beia Railway in Russia, which was built in 1970s, was 27.5% at 1994. The disease rate of 1996 line is as high as 45%. The disease rate of railway lines in permafrost regions in northeast forest areas is also high, and trains in the disease areas must pass slowly, which greatly affects the efficiency of railway transportation. In the future, the special trains of the Qinghai-Tibet Railway will be able to run on the Qinghai-Tibet Railway at the speed of 100 to 120 kilometers per hour.

Huo Feng Tunnel, the fourth highest plateau permafrost tunnel in the world, is 50 10/0m above sea level.

Tanggula station is the fifth highest railway station in the world, with an altitude of 5068 meters.

Tanggula Station of Qinghai-Tibet Railway is located in the hinterland of Qinghai-Tibet Plateau, with an altitude of 5068 meters and a distance of about 600 kilometers from Lhasa. Tanggula Station is a comprehensive passenger and freight station, the highest intermediate station along the Qinghai-Tibet Railway and the highest railway station in the world.

The world's sixth longest plateau frozen soil railway bridge, the first long bridge of Qinghai-Tibet railway11.7km.

On the edge of the Hoh Xil National Nature Reserve, the largest "no man's land" in China, a beautiful "Rainbow Bridge" soars under the Kunlun Snow Mountain. This is qingshui river bridge, known as the first long bridge of Qinghai-Tibet Railway, with a total length of 1 1.7 km, and it is also the longest railway bridge on the plateau frozen soil in the world.

No one died of altitude sickness in the army of road construction for four years.

From June 29th, 20001year to June 29th, 2005, the construction of Golmud-Lhasa section of Qinghai-Tibet Railway lasted more than four years. During this period, hundreds of thousands of people went up and down the Qinghai-Tibet Plateau and fought in the restricted area known as the "roof of the world". However, there was no death accident due to common altitude diseases such as brain edema and pulmonary edema. This is the best in another world created by China people when they built the Qinghai-Tibet Railway.

Amdo Bridge Base of Qinghai-Tibet Railway is 4704 meters above sea level, which is the eighth highest railway bridge base in the world.

In the north of Amdo County, Naqu, Tibet, there is a bridge base of Qinghai-Tibet Railway-Amdo Bridge Base, which covers an area of more than 8,000 square meters and is 4,704 meters above sea level. This is the highest railway bridge base in the world.

The track rows and prefabricated bridges required for the 530-kilometer railway in Tibet are all produced by Amdo Pujia base. Pujia base has played an important role in railway construction, and is mainly responsible for the storage of all kinds of pujia materials, the production of derailment row of rail sleepers, the prefabrication of bridges, the renovation preparation of locomotives and other large equipment.

The climate of Anduopujia base is very bad, and the oxygen content in the air is only half that of the inland plain. It is in this working environment that the base workers still set a plateau track-laying record of 8. 1 km in a single day, and the maximum number of tracks produced in a single shift reached 1 10, that is, 2.75 km, which is also rare in the single-shift production of railway tracks in China.

The best in the world

The longest plateau frozen soil tunnel

Total length of Kunlun Mountain Tunnel1686m.

Near the Kunlun Mountain Pass at an altitude of 4,767 meters, there is the world's longest plateau frozen soil tunnel-Kunlun Mountain Tunnel, with a total length of 1.686 meters. Kunlun Mountain is tall and majestic, running through Central Asia. It is called "Asian Spine" and "the ancestor of Long Mai". Kunlun Mountain Tunnel is located in permafrost region of plateau, with complex geological structure and harsh natural conditions. The tunnel passes through many fault zones, with thick underground ice at the entrance, rock accumulation at the exit, fissure water, groundwater and melted mud flow in the middle, which is called "kaleidoscope" of plateau geology.

It is understood that when the Kunlun Mountain Tunnel was first built, due to lack of oxygen, the construction workers carried 5 kilograms of oxygen cylinders and worked while inhaling oxygen. Photooxygen can consume 6.5438+0.2 million bottles a year.