China News Service, Chengdu, December 31 (Reporter Wang Peng) The reporter learned from the Sichuan Investment Group on the 31st that the Sichuan Wenma Expressway was completed and opened to traffic at 12:00 on the same day.
The opening of Wen-Ma Expressway ended the history of no expressway between Malkang, the capital of Aba Prefecture, and Chengdu, joined the 3.5-hour economic circle of Chengdu, and realized that all 21 cities (prefectures) of the province and Chengdu are all connected to expressways.
The Wen-Ma Expressway was invested and constructed by the Sichuan Investment Group, with a total length of 172 kilometers. It starts from the south of Wenchuan County, connects with Yingwen Expressway, and ends in the east of Malkang City. The main line has 121 bridges with a total length of 52 kilometers. 11 bridges; 32 tunnels with a total length of 96 kilometers, including 12 super-long tunnels.
The picture shows the Sichuan Wenma Expressway.
Photo courtesy of Sichuan Trading Group
The project started construction in 2015, with a total estimated investment of about 28.7 billion yuan. The entire line adopts two-way four-lane expressway standards and a design speed of 80 kilometers per hour.
The project is located on the edge of the transition from the Sichuan Basin to the Qinghai-Tibet Plateau, passing through many seismic fault zones, and frequent geological disasters. The line is spread out along the national highway 317 in the high mountain valleys of Aba Prefecture. The construction conditions are difficult and the amount of work is huge. people.
The picture shows the Sichuan Wenma Expressway.
Photo courtesy of Sichuan Trading Group
Wen-Ma Expressway is the highway with the longest mileage and the largest scale of bridges and tunnels among the highways in high-cold and high-altitude areas built in Sichuan Province.
The topography and geological conditions of the project are extremely complicated. It is close to the epicenter of the Wenchuan earthquake. The valleys along the route are vertical and horizontal, the terrain is steep, and the passage is narrow. The height difference between the mountain top and the valley is 3000 to 4000 meters. The altitude of the route rises from 1320 meters to 3225 meters and then drops to 2600. Meters, the height difference is large, the altitude is high, and the bridge to tunnel ratio is as high as 86.5%.
In addition, Wenma Expressway traverses temperate, cold temperate, and frigid zones, showing obvious vertical differences. The annual average temperature is about 6.3℃, and the lowest temperature is -30℃. It is subject to rain, snow, ice, fog, wind, etc. The severe weather is intertwined and the weather conditions are harsh.
Among them, the annual effective construction period of the Miyaluo section to Maerkang section in Li County is only about 8 months, and the construction period is extremely short.
After the project is completed and commissioned, starting from the Chengdu Ring Expressway, it will take about 3.5 hours to reach Malkang City, the capital of Aba Prefecture, which is nearly half the time before completion.
The picture shows the Sichuan Wenma Expressway.
Photo courtesy of Sichuan Trading Group
It is reported that during the trial run of the Wen-Ma Expressway, the section between Wenchuan toll station and East Guergou toll station will pass in both directions, and the section between Miyaluo toll station and Malkang East toll station will pass in both directions.
3.2 kilometers from Gurgou East Toll Station to Gurgou West Toll Station has been completed. Due to toll access problems, it is temporarily closed.
The reporter learned that the Wen-Ma Expressway is the second Tibet-related expressway after the Yakang Expressway. It is the highway from Sichuan to Tibet, Qinghai, and Xinjiang to the west. It is an economic corridor from the inland to the Qiang area of Aba-Tibet area. And strategic corridors. (Finish)