Although the traffic system in China is improving, there are still some places where the traffic can't meet the daily needs, so it needs to be built. Shaanxi province is no exception, and has been actively carrying out traffic construction. Shaanxi has a long history, and all dynasties built their capitals here, so it has left many historical sites and is a major tourist province in China. Among them, the terracotta warriors and horses of Qin Shihuang are the most famous, known as? The eighth wonder of the world? . In order to better develop tourism and let more people travel to Shaanxi, we must first repair the road and then introduce a expressway under construction in Shaanxi.
This expressway is Ningshi Expressway, which is a expressway in Ankang City, Shaanxi Province, that is, expressway from ningshan county to Shiquan County. The starting point of the line is located in Tongchewan Town, ningshan county, passing through Ningshan and Shiquan counties, and the end point is located in Shuangqiao Village, southeast of Shiquan County. The whole line is 5 1 km long, with a total investment of about 9.028 billion yuan, with four lanes in both directions and a designed top speed of 80 km/h.
There are 53 bridges and one tunnel 1 1 in expressway, Ningshi. The construction mileage of bridges and tunnels accounts for about 84.3% of the total mileage, which shows that the construction of this line is very difficult. As we all know, 70% of Qinba area is mountainous and 30% is alpine. The underground rock stratum is changeable, and the mountain is easy to crack after long-term open-air weathering, which brings great difficulties to the construction. On the one hand, we should pay attention to the construction quality, on the other hand, we should catch up with the progress, so the workers have been working overtime.