Who knows the longest train tunnel in Asia?

Zhoudizi Tunnel-Wushaoling Railway Right Line Tunnel ~ ~ March 30th, 2006, at 16, with 4 1058.

The second train sounded its horn safely, and the right line of Wushaoling Railway Tunnel, the longest land tunnel in Asia, was officially opened for operation.

Wushaoling is located at the eastern foot of Qilian Mountain in Hexi Corridor, Gansu Province, with dangerous terrain, changeable weather and obvious climate characteristics. There are not only the beautiful scenery of "flowers under and snow on the ground" in spring and summer, but also the spectacular scene of "snowflakes flying in June" in midsummer.

After Lanzhou-Xinjiang Railway 1956 was opened to traffic, Wushaoling Tunnel with a length of 967.8 meters was built. The train goes up and down the Panshan Mountain in Wushaoling and passes through the hinterland of Dangerous Ridge, becoming the traffic artery connecting Lanzhou and Hexi Corridor. On March 30th, 2003, with the official start of the second-line railway from Lanzhou West to Wuwei South of Lanzhou-Xinjiang Railway, Wushaoling Extra-long Tunnel Project became a control project to realize the double-track transportation from Lianyungang to Urumqi, a landmark project for the leap-forward development of China Railway, and also a key project for the sixth speed increase of the national railway.

In order to make the tunnel open as soon as possible and alleviate the serious situation of tight transportation capacity, the Wushaoling tunnel adopts the construction method of "long tunnel and short drilling" after the decisive decision of the party group of the Ministry of Railways, and the construction period is shortened from 5 years to 3 years. The opening of the right line and the original existing line form a double-line transportation condition, which greatly relieves the passenger and cargo transportation capacity of the Eurasian continental bridge passage. After the opening of the right line, the builders will continue to storm the left line tunnel, which is expected to open in June this year at 65438+ 10/. By then, the "bottleneck" of the transportation of the whole Eurasian continental bridge will be completely eliminated, which is of great significance and role in accelerating the infrastructure construction in the western region of China, promoting the exchange of materials in the central and western regions, developing the economies of countries along the route, and safeguarding national stability and unity.

Wushaoling Extra-long Tunnel is a national first-class railway trunk line, the first land tunnel with a length of 20.05km in China railway history and the longest in Asia. The tunnel is 0/73km away from Lanzhou/Kloc-,and the tunnel passes through a wide "compressive tectonic belt" composed of four regional faults, located in.

In the high seismic intensity area with the basic seismic intensity of octave, the maximum buried depth is 1 100 m, and the inner route of the tunnel is 1 1‰ unilateral slope from east to west. The height difference between the east and west entrances is 216m, and the rail surface is above 2446m. The designed maximum driving speed is 160 km/h, and the tunnel is divided into an upward tunnel and a downward tunnel, and the distance between the two tunnel lines is 40m. There is a horizontal channel connecting the upper and lower tunnels every 400m in the tunnel, ***5 1. There are five emergency evacuation passages within a distance of about 650 meters in the middle of the tunnel. The tunnel clearance is designed according to the double-deck container, and the track is designed according to the heavy standard, and the extra-long seamless track is laid at one time. After the opening of the tunnel, the operating mileage between Dachaigou and Longgou of Wu Lan Railway was shortened by 30.4 kilometers, and the running time of passenger cars was shortened by more than 37 minutes.

Organized by the Engineering Management Center of the Ministry of Railways and lanzhou railway administration, construction, design, construction, supervision and other parties participated. United and cooperated closely, faced up to difficulties, struggled hard and overcame many difficulties, and won three major battles: "assisting the tunnel to attack", "crossing the mountains to attack" and "using the I-line tunnel to hit the II-line". More than 10,000 builders have created first-class quality, first-class speed and first-class level with tenacious work style.