What is the ranking of Zhongnanshan Tunnel?

1. How many kilometers is the total length of the Zhongnanshan Tunnel? 2. The Zhongnanshan Tunnel ranks first in the world. 3. Where is the longest tunnel in the Qinling Mountains? 4. Introduction to the Qinling Zhongnanshan Highway Tunnel? 5. How many kilometers is the total length of the Zhongnanshan Tunnel, the longest tunnel in China?

The total length of the Zhongnanshan Tunnel is 18.02 kilometers.

The Qinling Zhongnan Mountain Highway Tunnel is located in the central part of Shaanxi Province, China. It starts from Qingcha Village, Wutai Street, Chang'an District, Xi'an, goes south along the west side of the Xikang Railway, crosses the western part of Zhongnan Mountain, and ends at Zhashui, Shangluo City. Xiaoyukou, Yingpan Town, County.

The Zhongnanshan Tunnel is located on the Xikang Expressway in Shaanxi Province, my country. It has not been easy to cross the Qinling Mountains since ancient times, but as infrastructure madmen, nothing can stump the wise Chinese.

Tens of thousands of high-tech construction workers spent six years in a row to overcome a series of construction problems such as geological faults, water inflows, and rock bursts, as well as major technical difficulties in operations such as ventilation and fire monitoring. Only then did the Qinling Zhongnan Mountain Highway Tunnel come into being. From then on, the natural chasm became a thoroughfare, and it took only 15 minutes to cross the Qinling Mountains.

What’s even more impressive about crossing the north and south of China is that the Qinling Zhongnan Mountain Tunnel is not only long but also very safe. There are more than 10,000 monitoring points in the tunnel to realize real-time monitoring without blind spots throughout the entire process.

In order to relieve driver visual fatigue and ensure driving safety, three 150-meter-long special light strips, currently the most advanced special light strips in highway tunnels in the world, are installed inside the tunnel, including blue, red, and white fluorescent tubes. It forms a series of patterns such as morning glow, sunset glow, blue sky, and white clouds. Driving along it feels like driving into a time tunnel.

In addition, there are emergency telephones every 100 meters in the Qinling Zhongnan Mountain Highway Tunnel, as well as wired broadcasting and wireless communication systems. Tunnel managers provide various road information to car drivers at any time through FM radio. Zhongnanshan Tunnel ranks first in the world

The Zhongnanshan Tunnel Light Strip ranks first in the world.

Our country is the country that builds the most roads in the world. Zhongnanshan Tunnel also encounters many difficulties when building various roads. For example, in mountainous areas, tunnels must be opened. While in Yunnan, Chinese workers overcame the world's most difficult tunnel project, the Dazhushan Tunnel; while in Shaanxi, Chinese workers built one of the most beautiful tunnels in the world, the Qinling Zhongnanshan Highway Tunnel.

As the name suggests, the Qinling Zhongnanshan Highway Tunnel was built in Zhongnan Mountain in the Qinling Mountains. It is not only known as the most beautiful highway tunnel in the world, but also the longest double-hole highway tunnel in the world. The length of a single hole reaches 18 kilometers, and it takes fifteen minutes to cross. The Zhongnanshan Tunnel was built in 2001 and took 6 years to complete.

Characteristics of the Zhongnanshan Tunnel

The reason why the Qinling Zhongnanshan Highway Tunnel is called the most beautiful highway tunnel in the world is because the design of the light strips in the Zhongnanshan Tunnel is the first in the world. A serving, which is also an unprecedented initiative in Asia. In the tunnel of Zhongnan Mountain, three special light strips are specially set up. These lights have different light patterns and can change different scenery.

The driver and passengers can see different scenes in the tunnel, which can make the driver more energetic when walking in the tunnel and relieve the fatigue caused by long-term driving. In terms of tunnel management, the Zhongnanshan Tunnel is also unique, with strategic management theory proposed for the first time.

The above content refers to the Zhongnanshan Tunnel: Baidu Encyclopedia - Qinling Zhongnanshan Highway Tunnel Where is the longest tunnel in Qinling

The road to Shu is difficult, first of all, it is an awe-inspiring mountain that stretches across the thousands of miles of road to Shu. The majestic mountain. To the ancients, the Qinling Mountains seemed to be an insurmountable barrier that strictly separated and distinguished the Guanzhong Plain and the Bashu Water Town. For modern people, the majestic Qinling Mountains are not an obstacle separating the two places. In the early days, there was a winding mountain road, but it also required more than 3 hours of walking on the mountain road. And when the opening ceremony of the Qinling Zhongnan Mountain Highway Tunnel was held on January 20, 2007, the Qinling moat that originally restricted the economic development of southern Shaanxi had become a thoroughfare.

The longest tunnel in Qinling Mountains - Zhongnanshan Highway Tunnel

The single tunnel of Zhongnanshan Highway Tunnel in Qinling Mountains is 18.02 kilometers long, and the double tunnel is 36.04 kilometers long. It can be crossed in 15 minutes. , Xi'an to Zhashui is shortened from 3 hours to 40 minutes.

Tunnel Scale

The Qinling Zhongnan Mountain Highway Tunnel is a control project of the national highway network from Baotou to Maoming, and is also the Shaanxi "Three Vertical, Four Horizontal and Five Radiation" highway network from Xi'an to Ankang Expressway. An important part of the highway. The single tunnel is 18.02 kilometers long and the double tunnel is 36.04 kilometers long. It is the largest construction scale in the world and the largest highway tunnel in China. Second only to Norway’s 24.51-kilometer-long Lerdo Road Tunnel. In March 2002, the first shot of construction of this unprecedented giant tunnel was heard deep in the Zhongnan Mountains of the Qinling Mountains. During the construction process, builders continued to overcome construction difficulties such as faults, water inflows, and rock bursts, as well as major technical issues in operations such as ventilation, fire, and monitoring, bringing my country's highway tunnel construction technology to a new level. On January 20, 2007, the tunnel was officially opened to traffic.

The world's longest double-hole highway tunnel---Qinling Zhongnanshan Highway Tunnel. The tunnel is a large-scale control project on the Baotou-Xi'an-Chongqing-Beihai and Yinchuan-Xi'an-Wuhan lines planned by the national highway network. It is a transportation hub connecting the Yellow River Economic Circle and the Yangtze River Economic Circle. It is also one of Shaanxi Province's "three The Xi'an to Ankang Expressway in the "vertical, four horizontal and five radiating" highway skeleton network is a control project that connects the traffic in the north and south of Qinling Mountains. Its completion is of great significance in promoting the implementation of the Western Development Strategy and the economic exchanges between Shaanxi Province and surrounding provinces and cities.

The Qinling Zhongnan Mountain Highway Tunnel starts from Wutai Township, Chang'an District, Xi'an in the north, and reaches Yingpan Town, Zhashui County, Shangluo City in the south. The entrance is located on the right bank of the Shibianyu River in Qingcha Village, Shibianyu Township, Chang'an District, Xi'an. The elevation is 896m; the exit is located on the right bank of Taiyu River, Xiaoyu Street, Yingpan Town, Zhashui County, and the elevation is 1026m. The cave is equipped with a herringbone longitudinal slope, the maximum longitudinal slope is 1.1, and the maximum burial depth is 1640m. The total length of a single tunnel of the tunnel is 18.02 kilometers, and the length of double tunnels is 36.04 kilometers. The tunnel is constructed according to two-way highway standards; the tunnel has a net width of 10.5 meters and a height limit of 5 meters; the design speed is 80 kilometers per hour, with a total investment of 3.193 billion yuan. [1-2]

The mileage of Shaanxi expressways ranks first in the west.

The completion of the expressway created a myth in the hinterland of Qinling Mountains, and highway builders hope to create another miracle in the land of Sanqin. The Qinling Zhongnanshan Tunnel is just a small microcosm of the great development of transportation construction in Shaanxi. In the past five years, Shaanxi has witnessed the largest investment in transportation construction, the largest construction scale, and the fastest transportation development. The "No. 1 Tunnel in China" has been completed, the north-south corridor from Xi'an to the Shaanxi-Mongolia border expressway has been completed, and the railways run through the north and south, forming a More than 1,100 kilometers of "iron backbone".

In the past five years, Shaanxi’s transportation construction mileage has almost doubled that of the past. Around the main national highways, Xi’an to Huxian, Yan’an to Ansai, Yulin to Jingbian, Xi’an Ring Expressway, and Airport Expressway, Jingbian to Wangquanliang Expressway, Xi'an to Zhashui, Huangling to Yan'an, Jingbian to Ansai Expressway and other expressways. These highways are narrowing the distance between our province and surrounding provinces. With Xi'an as the center, a highway network of "three vertical, four horizontal and five radiating" is gradually taking shape. More and more areas with access to expressways have tasted the benefits of access.

In January 2008, the highway mileage in Shaanxi Province exceeded 2,000 kilometers and reached 2,064 kilometers. The highway mileage ranked first in the western provinces of my country, and it also realized the "five vertical and seven horizontal" planned by the country. The main national highways are all connected in Shaanxi.

If you want to get rich, you must first build roads; when the roads are open, development opportunities will come. Shaanxi is the "bridgehead" for the development of the western region. In the past five years, Shaanxi has experienced a period of rapid development in road network construction. From 2002 to the present, the improvement of modern transportation networks such as highways, railways, and airports has and will continue to contribute to the rapid economic development of Shaanxi. The development provides more convenient transportation conditions.

The road to Shu is difficult. The first difficulty lies in a majestic mountain that stretches across the thousands of miles of road to Shu. This is the Qinling Mountains.

It is like an insurmountable barrier that strictly separates and distinguishes the Bashu Water Town and the Guanzhong Plain. The Zhongnanshan Tunnel in the Qinling Mountains, the "world's first tunnel" that was successfully opened to traffic in January 2007, shortened the 130 kilometers from Xi'an to Zhashui to 65 kilometers. The Qinling Mountains can be easily crossed in about 15 minutes.

List several roads across the Qinling Mountains. Although they were built in different years, lead in different directions, and even have different attributes, as long as they cross the Qinling Mountains, they can all be described in four words without exception. To describe: twists and turns. The Zhongnanshan Tunnel is 18.02 kilometers long, running straight through the Zhongnan Mountain in the Qinling Mountains. It has two tunnels and two lanes for the upper and lower lines. It starts from Qingcha, Chang'an District, Xi'an in the north and ends at Yingpan Town, Zhashui County, Shangzhou City.

The length of this tunnel is equivalent to the total length of 3.6 Chang'an Avenues in Beijing. Enter from the north entrance of the Qinling Zhongnan Mountain Tunnel and walk 18.2 kilometers south to cross the Qinling Mountains. The Qinling Zhongnanshan Tunnel has a designed speed of 80 kilometers per hour. It takes about 15 minutes to complete the entire journey. In these 15 minutes, you can fully feel the uniqueness of this tunnel.

Different positions and different colors of lights create a world of light in the tunnel. What's even more special is that after walking for a short time, you will see a bright light in front of you, and it seems that you are about to reach the entrance of the cave. There are white clouds in the sky and green trees underground. The special light strip in the tunnel is 150 meters long and 20.9 meters wide. It is like a pocket park in the tunnel.

Thanks to the completion of the tunnel, the road mileage from Xi'an to Zhashui will be shortened by 60 kilometers and the driving time will be shortened by 2.5 hours. The completion of the tunnel will eliminate backward transportation, a major bottleneck hindering the development of southern Shaanxi. Complete elimination is of great significance to improving transportation between northwest my country, central China, and southwest China, promoting social and economic development in the Qinba Mountains, and economic exchanges between Shaanxi Province and surrounding provinces and cities.

It is understood that the Qinling Zhongnanshan Tunnel has created the six best highway tunnel construction projects in my country: the world’s first double-hole highway tunnel, with a total length of 18.02 kilometers in a single tunnel; the first one built by my country The tunnel with the highest comprehensive level of self-design, construction, supervision and management; the world's largest diameter and deepest shaft ventilation project; the world's most complete monitoring system for highways; the world's most advanced special light strip for highway tunnels; proposed for the first time Strategy management theory, using the first set of automatic strategy generation software to automatically monitor and manage fires, traffic accidents, maintenance, etc. In this sense, the technical significance of the Qinling Zhongnanshan Tunnel is not only for Shaanxi, but also for the world. Introduction to the Qinling Zhongnan Mountain Highway Tunnel?

The Qinling Zhongnanshan Highway Tunnel has a single tunnel length of 18.02 kilometers and a double tunnel length of 36.04 kilometers. It can be traversed in 15 minutes, shortening the journey from Xi'an to Zhashui from 3 hours to 40 minutes. On January 20, 2007, the opening ceremony of the Qinling Zhongnan Mountain Highway Tunnel was held. At this point, the Qinling Mountains, which restricted the economic development of southern Shaanxi, became a thoroughfare. The travel mileage from Xi'an to Zhashui was shortened by about 60 kilometers, and the driving time was shortened from the original 3 hours. for 40 minutes.

Tunnel scale

The Qinling Zhongnanshan Highway Tunnel is a control project of the national highway network from Baotou to Maoming, and is also the Shaanxi "three vertical, four horizontal and five radial" highway network Xi'an to Ankang Expressway An important part of the highway. The single tunnel is 18.02 kilometers long and the double tunnel is 36.04 kilometers long. It is the largest construction scale in the world and the largest highway tunnel in China. Second only to Norway’s 24.51-kilometer-long Lerdo Road Tunnel. In March 2002, the first shot of construction of this unprecedented giant tunnel was heard deep in the Zhongnan Mountains of the Qinling Mountains. During the construction process, builders continued to overcome construction difficulties such as faults, water inflows, and rock bursts, as well as major technical issues in operations such as ventilation, fire, and monitoring, bringing my country's highway tunnel construction technology to a new level. On January 20, 2007, the tunnel was officially opened to traffic.

The world's longest double-hole highway tunnel---Qinling Zhongnanshan Highway Tunnel.

The tunnel is a large-scale control project on the Baotou-Xi'an-Chongqing-Beihai and Yinchuan-Xi'an-Wuhan lines planned by the national highway network. It is a transportation hub connecting the Yellow River Economic Circle and the Yangtze River Economic Circle. It is also one of Shaanxi Province's "three The Xi'an to Ankang Expressway in the "vertical, four horizontal and five radiating" highway skeleton network is a control project that connects the traffic in the north and south of Qinling Mountains. Its completion is of great significance in promoting the implementation of the Western Development Strategy and the economic exchanges between Shaanxi Province and surrounding provinces and cities.

The Qinling Zhongnan Mountain Highway Tunnel starts from Wutai Township, Chang'an District, Xi'an in the north, and reaches Yingpan Town, Zhashui County, Shangluo City in the south. The entrance is located on the right bank of the Shibianyu River in Qingcha Village, Shibianyu Township, Chang'an District, Xi'an. The elevation is 896m; the exit is located on the right bank of Taiyu River, Xiaoyu Street, Yingpan Town, Zhashui County, and the elevation is 1026m. The cave is equipped with a herringbone longitudinal slope, the maximum longitudinal slope is 1.1, and the maximum burial depth is 1640m. The total length of a single tunnel of the tunnel is 18.02 kilometers, and the length of double tunnels is 36.04 kilometers. The tunnel is constructed according to two-way highway standards; the tunnel has a net width of 10.5 meters and a height limit of 5 meters; the design speed is 80 kilometers per hour, with a total investment of 3.193 billion yuan.

The mileage of Shaanxi expressways ranks first in the west.

The completion of the expressway created a myth in the hinterland of Qinling Mountains, and highway builders hope to create another miracle in the land of Sanqin. The Qinling Zhongnanshan Tunnel is just a small microcosm of the great development of transportation construction in Shaanxi. In the past five years, Shaanxi has witnessed the largest investment in transportation construction, the largest construction scale, and the fastest transportation development. The "No. 1 Tunnel in China" has been completed, the north-south corridor from Xi'an to the Shaanxi-Mongolia border expressway has been completed, and the railways run through the north and south, forming a More than 1,100 kilometers of "iron backbone".

The mileage of transportation construction in Shaanxi in the past five years has almost doubled that of the past. Around the main national highways, Xi'an to Huxian, Yan'an to Ansai, Yulin to Jingbian, Xi'an Ring Expressway, and Airport Expressway, Jingbian to Wangquanliang Expressway, Xi'an to Zhashui, Huangling to Yan'an, Jingbian to Ansai Expressway and other expressways. These highways are narrowing the distance between our province and surrounding provinces. With Xi'an as the center, a highway network of "three vertical, four horizontal and five radiating" is gradually taking shape. More and more areas with access to expressways have tasted the benefits of access.

In January 2008, the mileage of expressways in operation in Shaanxi Province exceeded 2,000 kilometers and reached 2,064 kilometers. The mileage of expressways in operation in Shaanxi Province ranked first in the western provinces of my country, and it also realized the "five vertical and seven horizontal" planned by the country. All the main national highways run through Shaanxi.

If you want to get rich, you must first build roads; when the roads are open, development opportunities will come. Shaanxi is the "bridgehead" for the development of the western region. In the past five years, Shaanxi has experienced a period of rapid development in road network construction. From 2002 to the present, the improvement of modern transportation networks such as highways, railways, and airports has and will continue to contribute to the rapid economic development of Shaanxi. The development provides more convenient transportation conditions.

The road to Shu is difficult. The first difficulty lies in a majestic mountain that stretches across the thousands of miles of road to Shu. This is the Qinling Mountains. It is like an insurmountable barrier that strictly separates and distinguishes the Bashu Water Town and the Guanzhong Plain. The Zhongnanshan Tunnel in the Qinling Mountains, the "world's first tunnel" that was successfully opened to traffic in January 2007, shortened the 130 kilometers from Xi'an to Zhashui to 65 kilometers. The Qinling Mountains can be easily crossed in about 15 minutes.

Listing several roads that cross the Qinling Mountains. Although they were built in different years, lead in different directions, and even have different attributes of the roads, as long as they cross the Qinling Mountains, they can all be described in four words without exception. To describe: twists and turns. The Zhongnanshan Tunnel is 18.02 kilometers long, running straight through the Zhongnan Mountain in the Qinling Mountains. It has two tunnels and two lanes for the upper and lower lines. It starts from Qingcha, Chang'an District, Xi'an in the north and ends at Yingpan Town, Zhashui County, Shangzhou City.

The length of this tunnel is equivalent to the total length of 3.6 Chang'an Avenues in Beijing. Enter from the north entrance of the Qinling Zhongnan Mountain Tunnel and walk 18.2 kilometers south to cross the Qinling Mountains. The Qinling Zhongnanshan Tunnel has a designed speed of 80 kilometers per hour. It takes about 15 minutes to complete the entire journey. In these 15 minutes, you can fully feel the uniqueness of this tunnel.

Lights of different locations and colors create a world of light in the tunnel.

What's even more special is that after walking for a short time, you will see a bright light in front of you, and it seems that you are about to reach the entrance of the cave. There are white clouds in the sky and green trees underground. The special light strip in the tunnel is 150 meters long and 20.9 meters wide. It is like a pocket park in the tunnel.

Thanks to the completion of the tunnel, the highway mileage from Xi'an to Zhashui will be shortened by 60 kilometers and the driving time will be shortened by 2.5 hours. The completion of the tunnel will eliminate backward transportation, a major bottleneck hindering the development of southern Shaanxi. Complete elimination is of great significance to improving transportation between northwest my country, central China, and southwest China, promoting social and economic development in the Qinba Mountains, and economic exchanges between Shaanxi Province and surrounding provinces and cities.

It is understood that the Qinling Zhongnanshan Tunnel has created the six best highway tunnel construction projects in my country: the world’s first double-hole highway tunnel, with a single tunnel total length of 18.02 kilometers; the first one built by my country The tunnel with the highest comprehensive level of self-design, construction, supervision and management; the world's largest diameter and deepest shaft ventilation project; the world's most complete monitoring system for highways; the world's most advanced special light strip for highway tunnels; proposed for the first time Strategy management theory, using the first set of automatic strategy generation software to automatically monitor and manage fires, traffic accidents, maintenance, etc. In this sense, the technical significance of the Qinling Zhongnanshan Tunnel is not only for Shaanxi, but also for the world.

Tunnel Overview

The Qinling Zhongnanshan Highway Tunnel starts from Qingcha, Chang'an District, Xi'an in the north, and connects to the Lingbei section of the Xi'an-Zhashui Expressway. After passing through the Qinling Zhongnanshan Highway Tunnel, It ends at Yingpan Town, Zhashui County, Shangzhou City, and connects to the Lingnan section of the Xi'an-Zhashui Expressway. The design level is a highway, with two lanes for up and down traffic. It is a demonstration project and landmark project for highway tunnels in my country. It is the highway tunnel with the longest twin holes, the highest technical standards and the largest construction scale in the world. It has an internationally leading disaster prevention and rescue system, monitoring and management system, and operation service system.

The operational ventilation of the Qinling Zhongnanshan Highway Tunnel adopts three-shaft longitudinal segmented ventilation. The tunnel is equipped with eight major systems including lighting, ventilation, fire protection, communications, rescue, traffic safety control, power supply and distribution, and monitoring.

The best of tunnels

The Qinling Zhongnanshan Highway Tunnel has created six bests in the history of highway tunnel construction.

1. It is the world’s first and longest twin-hole highway tunnel.

Second, it is the first expressway extra-long tunnel designed, constructed, supervised and managed by my country itself, with the highest comprehensive technical level.

3. It is currently the largest and deepest shaft ventilation project in the world. The tunnel is equipped with three ventilation shafts, with a maximum depth of 661 meters and a maximum shaft diameter of 11.5 meters. There are large underground fan factories below the shafts. The project scale and ventilation control theory are the first in China and rare in the world. The tunnel ventilation shafts are vividly Described as the largest "chimney" on earth.

4. It has the most complete monitoring technology for highway tunnels in the world. A video surveillance camera is installed every 125 meters in the tunnel. There are 288 cameras in the two tunnels. It is the tunnel with the most densely installed highway cameras in the world. A video event detector and fire alarm system are set up every 250 meters. Dual systems are used to automatically track and monitor emergencies, and the most effective rescue plan is provided according to the type of event. The design level is world-leading, and many key technologies are domestic firsts. .

5. It has the most advanced special light strips in highway tunnels in the world to relieve driver visual fatigue and ensure driving safety. Through different lighting and pattern changes, the extra-long tunnel can be transformed into several short tunnels, thereby eliminating the driver's anxiety and depression, which is the first of its kind in Asia.

6. For the first time, the strategic management theory was creatively proposed and the first set of automatic strategy generation software was used. It is at the international leading level in highway tunnel management concepts. Automatically monitor and manage fires, traffic accidents, maintenance and other incidents. As long as an event occurs, the automatic strategy generation software will automatically generate the corresponding strategy program for all-round linkage guidance to ensure the operation and management of the Qinling Zhongnanshan Expressway Tunnel. Accuracy and reliability.

Operation Management

The Qinling Zhongnan Mountain Highway Tunnel is an extra-long, world-class mountain highway tunnel. Lack of construction experience in project design, construction, scientific research, operation management, etc. In order to make prudent decisions, the Qinling Zhongnanshan Highway Tunnel Expert Committee, composed of four academicians including Sun Jun, Wang Mengshu, Zheng Yingren, and Qian Qihu, was established for this project to monitor and provide technical consultation on major design projects and design standards. We have held a number of major meetings to conduct consultation and research on major technical problems in project design, construction, and scientific research, and effectively solved ventilation, electromechanical control, disaster prevention and rescue, anchor support, crosswalks, and driving. Technical issues such as the setting of cross passages provide decision-making basis for the design, construction and operation management of the project.

Relying on the technical difficulties of the Qinling Zhongnan Mountain Highway Tunnel, with the support of the Western Transportation Construction Science and Technology Fund of the Ministry of Transport, the "Qinling Zhongnan Mountain Extra Long Highway Tunnel Key Technology Research" project was established, and the ventilation and prevention of the extra long tunnel were carried out. Research on seven topics including disaster relief, monitoring, quotas, environmental protection, operations management, and information. Among them, many achievements in operational ventilation technology, disaster prevention and rescue technology, and monitoring technology have passed expert appraisal and have reached the world's leading level. It has been successively applied to engineering technology design, construction management and subsequent operation management, improving the overall technical level of engineering projects.

Significance of the Tunnel

The completion of the Qinling Zhongnan Mountain Expressway Tunnel will help improve the national and Shaanxi Province highway network structure, break through the north-south traffic barrier, improve transportation in the northwest and southwest of my country, and strengthen the northwest , Southwest, North and South China's economic and cultural connections, building a harmonious society, promoting the development of the western region, and accelerating the implementation of political, economic, financial, cultural and technological exchanges between the Yellow River Economic Circle and the Yangtze River Economic Circle are of great strategic significance. At the same time, it is of great significance to promote the construction of extra-long highway tunnels in my country.

After the construction of the Qinling Zhongnanshan Expressway Tunnel, the 146-kilometer distance from Xi'an to Zhashui will be shortened by about 60 kilometers, which can completely improve the traffic situation in southern Shaanxi, enhance the economic radiation of Xi'an, and greatly Promoting the economic development and upgrading of the industrial structure in southern Shaanxi is of great political significance for giving full play to Shaanxi Province's location advantages in implementing the western development strategy, promoting the implementation of the western development strategy, and building a strong western province.

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The longest tunnel in China is the Zhongnanshan Tunnel in Qinling Mountains.

China’s Qinling Tunnel was officially completed as the Zhongnanshan Tunnel. This is the longest tunnel in the world, the Zhongnanshan Tunnel, with a total length of 98 kilometers. After learning the news, netizens said they couldn’t believe it. This is because As a major country in South Asia, not to mention the construction of large-scale water conservancy projects such as the Qinling Tunnel and the Zhongnanshan Tunnel, even ordinary dams took 42 years to successfully build the Zhongnanshan Tunnel, and this dam was put into use just about 22 hours ago. Then it collapsed.

Zhongnan Mountain

Zhongnan Mountain, also known as Taiyi Mountain, Difei Mountain, Zhongnan Mountain, Zhounan Mountain, referred to as Nanshan, is located in the middle section of the Qinling Mountains in Shaanxi Province, the ancient city of Chang'an (Xi'an) Zhinan, the birthplace of allusions such as "Shoubinan Mountain" and "Zhongnan Shortcut", is an important geographical indication in China.

Zhongnan Mountain is located in the main part of the collision and assembly of the northern and southern continental plates in China. It is the natural geological, geographical, ecological, climate, environmental and even humanistic dividing line between northern and southern China. It starts from the easternmost part of Lantian County, Xi'an City in the east. Yangjiapu stretches to the south of Taibai Mountain, the main peak of the Qinling Mountains in Zhouzhi County, in the west, between 107°37′-109°49′ east longitude and 33°41′-34°22′ north latitude, and is about 230 meters long from east to west. Kilometers, 55 kilometers at the widest point and 15 kilometers at the narrowest point, with a total area of ??about 4851 square kilometers. It spans Lantian County, Chang'an District, _Yi District, Zhouzhi County and other counties and districts.