Paving a new road to heaven and writing a new legend_Xinhuanet – Xinhuanet Yunnan Channel

  Paving a new road to heaven and writing a new legend

  ——Written on the occasion of the opening of the Lijiang-Shangri-La railway

The dynamic detection train passes through Xiaozhongdian.Photo by reporter Chen Fei

This is a magnificent picture: in the southeastern part of the Qinghai-Tibet Plateau, in the hinterland of the huge folded mountains in the Hengduan Mountains, the Jade Dragon Snow Mountain with an altitude of 5,596 meters and the Haba Snow Mountain with an altitude of 5,396 meters face each other across the river. The world’s first long-span steel truss railway suspension bridge spans the Jinsha River. River, walking side by side with the Tiger Leaping Gorge Jinshajiang Highway Bridge.

This is a new legend in the history of China’s railway transportation. After nine years of hard work by tens of thousands of builders, the Lijiang-Shangri-La railway was officially opened for operation on November 26.

From Jade Dragon Snow Mountain to Haba Snow Mountain, from the ancient city of Lijiang to Shangri-La, the giant steel dragon is like a hada, stretching freely among the blue sky, meadows and snow-capped mountains, stringing together the most beautiful scenery in northwest Yunnan like a beaded chain.

With the opening of this “Beautiful Yunling Sky Road”, Diqing Tibetan Autonomous Prefecture, with an average altitude of 3,380 meters, has been integrated into the national railway network, realizing the long-term expectations of people of all ethnic groups in Diqing.

In the past, the Tea Horse Road is now running at high speed.

The blueprint concept of the Yunnan-Tibet Railway began in the last century. It is an important part of the Yunnan-Tibet Railway, one of the railways into Tibet in my country’s “Medium and Long-term Railway Network Plan”. It is an important part of Yunnan Province’s “eight outbound provinces and five outbound” railway network plan. The passage out of the province and into Tibet. The project was approved in 2009, the feasibility study report was approved after optimizing the project plan in June 2014, the preliminary design was approved in July 2014, and construction started in December 2014.

The starting point and end point of the Lixiang Railway – Lijiang and Shangri-La were both important towns on the Tea Horse Road. On the Yunnan-Tibet Tea Horse Road, which has lasted for more than a thousand years, countless caravans carried supplies through criss-crossing trails and through canyons. , Bingfeng and Xueling, embarking on a road of ethnic cultural exchange and trade.

Nowadays, the natural chasm has been opened up, and after the Lixiang-Xiang Railway is completed and opened to traffic, the time from Kunming to Shangri-La has been shortened from 6.5 hours by road to 4.5 hours. Diqing Prefecture has ended its history of not having access to railways and has entered the era of high-speed trains.

“I have long been looking forward to the railway being able to reach Shangri-La so that our yaks can be sold further away.” Lu Rong Nyima, chairman of Diqing Shangri-La Dingsheng Yak Breeding Co., Ltd., was very excited. Relying on the convenient freight and the nationwide connected railway network, the transportation cost and transportation time of yaks will be greatly reduced, which can help companies further open up the market and enter cities such as Beijing, Shanghai and Guangzhou.

After the Lixiang Railway is completed and opened to traffic, it will strengthen the connectivity between Diqing Prefecture and central and coastal areas, increase the flexibility of the railway network transportation, and will promote Diqing Prefecture and radiate eastern Tibet and western Sichuan regions to better integrate into the “Belt and Road Initiative” National development plans such as the construction of the Yangtze River Economic Belt and the New Western Land-Sea Corridor.

The relevant person in charge of the Provincial Department of Transportation said that as an important part of the Yunnan-Tibet Railway, the completion and opening of the Lixiang Railway marks that the construction of the Yunnan-Tibet Railway has entered a new stage. The Shangri-La to Sichuan-Tibet railway section has been included in the national railway “14th Five-Year Plan” development plan, and the railway will continue to extend to the Qinghai-Tibet Plateau.

Change the path through the mountains, the sky, the gorges and the snow-covered areas

The railway passes through the hinterland of the Hengduan Mountains of the Qinghai-Tibet Plateau, starting from Lijiang Station at an altitude of 2,400 meters. All the way north, the altitude drops to 2,000 meters when passing the Tiger Leaping Gorge, and then rises rapidly, reaching an altitude of 3,300 meters when it reaches Shangri-La Station.

The Haba Snow Mountain Tunnel, which is adjacent to the Jinsha River and passes through the Haba Snow Mountain Mountains, is 9,523 meters long. It is the last tunnel that runs through the entire railway line from Lijiang to Shangri-La.

Because it is located in the northwest Yunnan longitudinal valley of the Hengduan Mountains of the Qinghai-Tibet Plateau, affected by the long-term activities of multiple fault zones, problems such as landslides and karsts are extremely prominent. The maximum burial depth of the Haba Snow Mountain Tunnel reaches 1,155 meters. Due to tectonic extrusion, the surrounding rock of the tunnel is extremely broken, making the tunnel’s geostress high, especially the tunnel support pressure, which is the highest among domestic railway tunnel construction. “The deformation is very serious, which brings great challenges to tunnel excavation and support.” Huo Erlun, the site manager of the Haba Snow Mountain Tunnel of China Railway 16th Bureau, said that during the construction process, the Haba Snow Mountain Tunnel has experienced more than 200 large and small slide collapses. Almost every day, builders have to face various problems and emergencies. Without experience to draw from, every meter of excavation is very difficult.

The construction of Lixiang Railway is extremely difficult, and the Haba Snow Mountain Tunnel is just a microcosm. In the past 9 years, the majority of railway builders have carried forward the spirit of not being short of oxygen, not afraid of hardships, higher altitudes, higher standards, and higher enthusiasm. They have integrated and applied the practical experience of my country’s railway construction to analyze fault fracture zones, high temperatures and abundant water, and After overcoming engineering problems such as high ground stress and large deformation, the Jinsha River Railway Bridge, the world’s first long-span steel truss railway suspension bridge, achieved “three world firsts” and set a record of 8 kilometers of plateau railway track laying in a single day. The world’s leading large deformation control technology measures have accumulated valuable experience for my country’s plateau railway construction and created one miracle after another in the history of railway construction in my country and the world.

High-speed trains are racing in tunnels and bridges. “As a builder, it is our greatest happiness to be able to witness the day when it is opened to traffic. It is worth it no matter how hard or tired it is.” Huo Erlun said.

20 tunnels and 34 bridges cross mountains and rivers. The most beautiful sky road closely connects Lijiang City and Diqing Prefecture.

The beautiful scenery of Yunling Tianlu is always surrounded by green mountains and green water.

In early winter, Shangri-La ushered in its first heavy snowfall, and Pudacuo National Park put on new white clothes. This was a winter invitation sent by Shangri-La to the world. With the opening of the Lixiang Railway, the winter beauty of the snow-covered plateau is no longer inaccessible due to inconvenient transportation. From plateau wetlands to snow-capped mountains and forests, the railway connects the ruggedness of Jade Dragon Snow Mountain and Haba Snow Mountain, the beauty of Lashi Sea and Napa Sea, and the mystery of Dukezong and Lijiang Ancient City, starting a magnificent journey through northwest Yunnan.

Harmony and shared beauty, mountains and rivers sharing the same beauty, behind each beautiful picture is the “green symphony” sung by the railway builders with responsibility and wisdom.

“Look at the Jinsha River Bridge, it is like a harp floating in the sky under the cover of vegetation, coexisting harmoniously with nature.” Wang Xiong, chief engineer of the Lixiang Railway Project Department of the China Railway Bridge Bureau, said that in order to “gently” put the railway Entering the mountain canyon, as early as when surveying and selecting the route, designers took into account geological conditions, ecologically sensitive points and other factors to avoid the core area, buffer zone and environmentally sensitive points of the nature reserve to reduce the impact on the environment.

In the Mumu Tunnel, the tunnel was originally planned to be constructed with an open cave. However, the tunnel crosses the ruins of the Tea Horse Road and there are many century-old trees around it. In order to reduce the impact on the environment, it was changed to a dark cave construction.

Ma Jianhua, deputy commander of the West Yunnan Railway Construction Headquarters of the China Railway Kunming Bureau Group, said that the project department has made every effort to promote the ecological restoration of the section passing through the Jade Dragon Snow Mountain and Haba Snow Mountain Scenic Area, and comprehensively implement the ecological restoration of slopes, waste dumps, construction sites and roads along the line. projects and strictly implement environmental and water protection measures. During construction, in accordance with the principle of “block first and discard later”, priority was given to construction of the retaining works, and as much surface soil as possible was stripped off, and then the soil was discarded in layers from low to high. The spoil (slag) site is also chosen to be located in branch ditches with no perennial water flow and no geological hazards, and does not occupy forests or cultivated land. After the waste soil (slag) is completed, interception and drainage facilities will be completed in a timely manner, and soil and greening will be covered according to the reclamation plan, so that railway construction and environmental protection can be achieved in parallel.

In the Haba Snow Mountain Tunnel, because the entrance is located within the scope of the Tiger Leaping Gorge Tourist Scenic Area and the Jinsha River Water Source Protection Area, in order to protect the environmental water sources here, the construction team designed a sewage treatment station to use the treated wastewater for construction access roads, Sprinkle water in mixing stations and other areas to reduce dust, and it is strictly prohibited to discharge substandard wastewater. In environmentally sensitive areas such as Wenbi Lake, Lashi Sea, and Tiger Leaping Gorge, the project department has built a total of 8 sewage treatment stations, more than 40 sedimentation tanks, approximately 105,000 cubic meters of support and protection facilities, and approximately 187,000 square meters of green planting. rice. At the same time, for the first time, a vegetation ecological restoration monitoring and evaluation system for railway green channels in the alpine and cold areas of the northwest Yunnan Plateau has been systematically established along the ecologically fragile line, and efforts have been made to create green ecological projects.

“Since the construction of the Lixiang Railway started, we have integrated the concepts of ecological priority, conservation and intensification, green and low carbon into the entire process of railway planning, design, construction and operation,” said Ma Jianhua.

Rural revitalization, hundreds of industries prospering, national harmony and one family

The operation of the Lixiang Railway’s high-speed trains has connected the flow of people, logistics, information and capital, paving a fast runway for the local economy to take off.

In the waiting hall of Lijiang Railway Station, Jinhua waiters dressed in gorgeous national costumes are shuttled among the crowd, providing warm services to tourists in three languages: Chinese, English, and Naxi. “We must show the most beautiful side of our Lijiang, so that tourists from all over the world can leave a beautiful and unforgettable impression.” said He Fen, a Naxi girl.

“I have been looking forward to this road for nine years and it is finally opened. It’s really exciting!” said Naka, president of the Dukezong Ancient City Chamber of Commerce in Shangri-La City. In the past, due to weather and traffic reasons, not only prices and investment costs were high, but also the cost of investment was higher in a year. We can only do business for half a year, but now there are 70 or 80 newly renovated inns in the ancient city, and everyone is ready to welcome more tourists. “We look forward to the off-season being strong and the peak season being even stronger,” he said.

Transportation promotes integration. With the opening of the Lixiang Railway, Lijiang has changed from the “terminal” of the railway to the “node”, connecting Dali to the south and Diqing to the north. “Lijiang will usher in new impetus in accelerating the construction of an important node of the Greater West Yunnan Tourism Circle, an important gateway for the integration of West Yunnan, and an important hub of the Yunnan, Sichuan, and Tibet Shangri-La.” said the person in charge of the Lijiang Municipal Culture and Tourism Bureau.

Just before the opening of the Li-Xiang Railway, a 1+1+1>3 joint meeting was held in Diqing Shangri-La. Dali, Lijiang, and Diqing are the three pearls in Yunnan’s tourism map. They are places rich in natural landscapes and national cultures. Taking advantage of the further accessibility of transportation, we will work together to promote resource sharing, talent mutual assistance, and brand sharing among the three parties in the cultural tourism industry. construction, enhance the overall attractiveness of tourism, and jointly promote the high-quality transformation and upgrading of tourism in northwest Yunnan.

Since this year, Diqing Prefecture has continuously enriched its product supply, created all-region tourism, full-time tourism, and all-factor tourism, and released preferential policies for the “Winter Tour Shangri-La” platform.

“Airplanes were opened 20 years ago, highways were opened 5 years ago, and motor vehicles will be opened soon. The traffic in Diqing Prefecture has undergone earth-shaking changes, and the ‘Shangri-La of the World’ is no longer far away.” Liu Xudong, a cadre of the Diqing Prefecture Transportation Bureau He said happily, “The opening of the high-speed train has opened up a channel for winter tourism in Diqing Prefecture, and the development foundation of the pillar industry of tourism has been more solid.”

The ancient Tea Horse Road once witnessed the integration and coexistence of multi-ethnic cultures. Today’s plateau train will further accelerate the exchanges and integration of various ethnic groups.

“This is not only a road to people’s livelihood and wealth, but also a road to unity and harmony!” Zhao Wei, member of the Standing Committee of the Shangri-La Municipal Committee and executive deputy mayor, said that the opening of the Lixiang Railway will definitely bring more tourists and promote the development of all ethnic groups. Communicate and mingle. Taking this opportunity, Shangri-La is building a benchmark for national unity and progress demonstration area and further polishing the name card of the national national unity and progress demonstration city.

Roads are connected, people are harmonious, and everything is new. In the folds of the Hengduan Mountains in northwest Yunnan, a three-dimensional traffic pattern of thoroughfares, winding iron dragons and soaring silver eagles has been formed. (Reporters Duan Yi, Hu Xiaorong, Li Chenghan, Chen Xiaobo)