Countdown to opening! The reporter learned from China Railway Chengdu Bureau Group Co., Ltd. on the 28th that the Sichuan Zhenjiangguan to Huangshengguan section of the Sichuan Chengdu to Qinghai Xining railway is about to be opened. By then, it will take 2 hours by train from Chengdu to Huanglong Jiuzhai Station, and then transfer to the bus to easily reach Jiuzhaigou and other scenic spots.
“When the train enters Aba, Jiuzhaigou is waiting for you.” What changes will the opening of the Zhenhuang section of the Sichuan-Qinghai Railway bring to the local area? As a Escort manila plateau railway, what are its special features?
The key to filling the “blank Escort manila” of the Western RailwayEscort
General Secretary Xi Jinping pointed out: “The national transportation map is like a painting. China’s central, eastern, The Northeastern region is all meticulously painted, and the western region has too much blank space. In the future, we will have to add a few strokes to make the transportation of beautiful China more beautiful. We need to fully demonstrate and scientifically plan, and the railway construction needs to be a big dealSugar daddy.”
The Sichuan-Qinghai Railway starts from the Chengdu Plain and ends at the Qinghai-Tibet Plateau. It is my country’s “eight vertical and eight horizontal” high-speed rail network It is an important part of the corridor from Central Lanzhou, Xining to Guangzhou, and is also a key step in filling the “blank space” of the western railway.
At the end of last year, the section from Qingbaijiangdong to Zhenjiangguan of the Sichuan-Qinghai Railway was put into operation. Yin Jian, director of Zhenjiang Pass Station, said that about 6,800 passengers arrive and depart from Zhenjiang Pass every day, and almost every train is packed.
EMU enters Jiuzhaigou to stimulate industrial vitality.
In the past, it took 7 hours to drive from Chengdu to Jiuzhaigou Scenic Area. Last year, when the railway was connected to Zhenjiangguan Station, the time was shortened to 5 hours. Now, the “transfer between highway and railway” only takes more than 3 hours. When trains of trains carry tourists into Jiuzhaigou, it will better promote the development of the local cultural tourism industry.
Zhangzha Town, located at the mouth of Jiuzhaigou Valley, relies on Jiuzhaigou Scenic Area to connect ecological landscapes, scenic spots, folk culture, and characteristic villages. Sugar daddy
“Jiuzhaigou is coming to usSugardaddysays there are endless possibilities. “Xu Tao, the person in charge of Jiuzhai Huamei Resort in Zhangzha Town, said that not only can you experience Tibetan culture here, but you can also visit the Tibetan and Qiang Intangible Cultural Heritage Museum and engage in outdoor sportsPinay escort offers diverse scenes and rich experiences. “We are actively striving to become a national tourist resort.”
More convenient transportation will promote urban-rural integration.
After the opening of the Zhenhuang section of the Sichuan-Qinghai Railway, Songpan County has become a county with four high-speed rail stations. The railway has helped to further open up sales for special agricultural and animal husbandry products.
“Songpan County’s agricultural products are very popular. Popular, especially Dihu tea, sales are very good. “At the end of last year, after the opening of the Qingbaijiangdong to Zhenjiang Pass section of the Sichuan-Qinghai Railway, local operator Chen Anyongsheng’s local Hu tea produced by Sugar daddy Sales volume doubled. Taking advantage of the opportunities brought by the opening of the new line, Chen Anyong built a Hu tea production and processing workshop and sold it online and offline, helping local villagers increase their income and become rich.
The construction of the tunnel was difficult. Accounting for up to 95%
SichuanSugar daddy The Qinghai-Qinghai Railway is located on the eastern edge of the Qinghai-Tibet Plateau. The special geological structure of the mountain and canyon area where the second step of my country’s terrain transitions from the first step has allowed the Sichuan-Qinghai Railway to set several firsts:
The world’s first railway to pass through the core area of a magnitude 8 earthquake. The first railway in the northern section of the Hengduan Mountains in my country; the railway with the most active fault zones in my country; the longest railway with active fault zones in my country
Carefully select the route to reduce risks
Ensuring safety is key when building railways on active fault zones. Affected by the 2008 Wenchuan earthquake and the 2017 Jiuzhaigou earthquake, the geological environment along the Sichuan-Qinghai Railway is extremely fragile.
Chenglan Railway Co., Ltd. Fu Guocheng, general manager of the company, said that experts analyzed the earthquake damage and found that the damage to the tunnels was relatively small. Therefore, the Zhenhuang section of the Sichuan-Qinghai Railway mainly uses long tunnel groups and deep tunnels to reduce possible geological hazards. Disaster impact Manila escort and railway operation risks
Songpan Tunnel, Desheng Tunnel, Hongqiaoguan Tunnel… …After entering the middle and low mountainous areas from the basin, the Sichuan-Qinghai Railway Escort manila plunges into the mountains, with tunnels one after another..
Overcome difficulties and gnaw hard bones.
The proportion of tunnels in the Huang section of the Sichuan-Qinghai Railway is as high as 95%, and the longest single-hole, double-track railway tunnel in Asia was born – Sugar daddy Desheng Tunnel.
Wan Yong, the technical leader of the Desheng Tunnel project, listed a set of data: During the construction process, all The proportion of major deformation in the tunnel is as high as 32.6%; problems such as tunnel face collapse, mud gushing, and water inrush occurred more than 300 times in total. ; The most difficult section was tunneled less than 7 meters throughout the year… “The Desheng Tunnel can be called ‘drilling a hole in tofu’ and is recognized by the industry as one of the most difficult cross-mountain tunnels in my country.”
In Against this background, the construction process of the Desheng Tunnel also experienced many earthquake tests. Although it only took 7 minutes for the train to pass through, the builders of China Railway Construction lasted for 10 years before they finally penetrated the tunnel.
Be brave in innovation and make breakthroughs in skills.
“The most difficult thing is that the geological problems encountered in each tunnel are different.” Fu Guocheng said that the Desheng Tunnel is difficult, and the Songpan Tunnel next door is not easy either. The 8-kilometer tunnel took 8 Over the years, because it was built on an active fault zone, the force of the mountains could crush the steel bars as thick as a bowl and twist them into twists.
The construction team Pinay escort team is conducting research and construction while conducting a number of engineering test special studies. Sugar daddy“Songpan Tunnel has applied for 3 invention patents and 9 utility model patents. Manila escort” Wan Binghong, project leader of China Railway 25th Bureau, said that these patents have been used in many other projects, bringing direct economic benefitsManila escort more than 50 million yuan.
Drilling is difficult, and track laying is not Manila escorteasy either.
The Zhenhuang section of the Sichuan-Qinghai Railway is 69 kilometers long, with a height difference of 650 meters and a maximum slope of 17.8‰.In addition, the line is located on a plateau, making track laying very difficult.
Zhang Hua, executive deputy commander of the Chenglan Project of China Railway No. 8 Bureau, introduced that the project team installed a transportation remote video monitoring system and equipped more than 80 units (vehicles) of advanced equipment. According to the requirements of three locomotives towing at the same time, The construction method ensured that the track laying was completed safely and on schedule.
There is a secret to plateau railway operation
The railway track successfully “jumped” to the plateau Sugar daddyYuan, how to operate high-speed trains safely?
Let’s look at the train first. The National Railway Chengdu Bureau has specially configured CRH2G high-cold-resistant EMUs for the Zhenhuang section of the Sichuan-Qinghai Railway.
The CRH2G EMU is an all-rounder and can operate normally in extreme temperature environments from minus 40 degrees Celsius to above zero 40 degrees Celsius. The materials, lubricating grease and electrical components used in the EMU have passed the low temperature resistance test of minus 40 degrees Celsius.
Not only that, the R&D personnel also specially designed the EMU bogies for high-cold adaptability, and created original technologies such as “spray anti-freeze” and “high-pressure blowing and snow removal”, which effectively alleviated the snow accumulation on the bogies in high-cold, icy and snowy weather. ice problem to ensure the safety and reliability of EMUs.
Look at the emergency reserve. Inside the Desheng Tunnel is “hidden” Asia’s largest tunnel disaster prevention and rescue station. The rescue station is located in the middle of the tunnel, with three floors: upper, middle, lower, left, middle and right, with a total of 35 branch holes.
“The average escape tunnel is 50 meters each. Step into it and walk in the indicated direction, and you can evacuate out of the cave in 10 minutes.” Chen Fei, deputy manager of the Chenglan Railway Engineering Headquarters of China Railway Second Bureau, said that the entire The disaster prevention and rescue station is a complex group of caverns, with smoke exhaust on the upper floor, evacuation on the middle floor, and escape evacuation on the bottom floor.
In order to Escort cope with the rain and snow weather, the National Railway Chengdu Bureau has set up offices in Zhenjiangguan, Songpan and other stations Pinay escort Installed 51 sets of turnout snow melting devices. After starting the device with one click, the heating strips and external locking heating devices installed on the turnout will be powered on and heated, and the ice and snow will fall Sugar daddy Melt immediately to ensure proper turnout switching.
There is also an artificial intelligence analysis system to help.
The relevant person in charge of the Chengdu Bureau of National Railways introduced that in order to ensure the safety of train operations, the Sichuan-Qinghai Railway will officially launch a high-speed railway earthquake early warning system. A total of 10 monitoring points will be set up along the entire line to monitor earthquake activities in real time, and during earthquakes Quickly generate, transmit and release earthquake warning information and emergency response information when it occurs.
At the same time, the National Railway Chengdu Bureau also introduced the prevention of mountainEscort landslides, slides, debris flows and other naturalPinay escortAlarm system for disasters. When a natural disaster occurs, intelligent Escort monitoring and manual patrol Pinay escort inspection, confirm the scope of the disaster, analyze the hazard level, provide effective guidance for emergency response, and ensure the safety of railway operations.
“Look forward to it, look forward to it.” Zhang Degang, a young man from Songpan County, was very excited when talking about the high-speed rail. “My family has raised nearly a hundred yaks. After the high-speed rail is opened, passengers can take yak meat home on the same day.” , the sales are wider.”