"Red" Snow Mountain: From "turning over" to "crossing

Author:China Railway Architecture Time:2022.06.17

Correspondent Wu Ji

Jiajinshan, Jiajinshan, only three feet from heaven, the birds fly, but people are even more unable to climb ... Jiajinshan is the first Daxue Mountain over the Red Army Long March. The main peak is 4930 meters above sea level. "Jia Ji" means very steep.

Today, at the foot of the "red" snowy mountains that revolutionary the first revolution, a "red" channel and the people's livelihood passage that carried the people of Ya'an and Aba's earnest expectations and auspicious happiness had begun its solid arms. An army of China Railway Eleventh Bureau built a major army to meet the mountains and meet the waterfront bridge, and determined to give happiness and health to the mountains, snow here, and people here. Convenient to enter the lives of the people here, and the rich password is about to open. This iron army is turning this sky.

A "scale ruler" with a temperature

"There is a black strong man on your project. It is really amazing. Usually carrying heavy instruments, walking four or five kilometers of Panshan Road." When Yao Xueqing had not seen, the author knew from the villagers of the small Jincun. His deeds, listening to the villagers describing him to him, and more curious in his heart, what kind of person can make the local people applaud.

The exit of the Jiajinshan Tunnel is located in Xia Jin County, Aba Prefecture, Sichuan Province. It is more than 3,200 meters above sea level. The average annual temperature is 12.2 degrees Celsius. Yao Xueqing, the deputy chief worker of the project and the captain of the survey, is doing his measurement work in such an environment. When I first saw Yao Xueqing, the strong and stable was the first impression of him. As soon as he came from other projects, he faced the environment of the heavy snow mountain. After the initial discomfort, he quickly put into work. Essence

"At present, there are fewer people in the measurement team of the project department. The measurement of the tunnel outlet is all borne by me and another colleague. At present, the main tasks are mixing stations, residue fields, and tunnel holes. Heavy, if the measurement work cannot be completed on time, the construction progress will be affected. Sometimes when the project car is tight or the measurement point is relatively remote, we all walk with the measurement instrument. It may be because there is a 'big heart'. Many colleagues encountered the high reverse phenomenon that did not appear on us. "When it comes to the high -reverse problem that everyone has a headache, Yao Xueqing smiled and drank the hot water of saffron bubbles.

"The measurement of measurement must be accurate and more temperature. What we do now is to do the truth for the local people. Today's Spring Festival adheres to the life of the people of Baoxing and Xiaojin In the past 10 years of work experience, Yao Xueqing has his own insights and confidence in his professional field.

Project construction site

Iron building blue at the foot of the snow mountain

At the end of January, the snow on the top of Jinshan slowly extended downwards, and the 冽 winter breeze mixed with a low language of the mountain, blowing the knife flag hunting around the construction site. Under the lighting light of the industrial area, the Minister of Equipment Guo Ping was tightly wrapped in his dark blue military coat and slowly moved towards the stacking area of ​​the mixing parts. The lights pulled his shadow for a long time, leaving a deep dark shadow in the white snow. As the Minister of Equipment, Guo Ping often said, "Difficulties will definitely have it, but we must try our best to solve the difficulties, ensure that the equipment enters smoothly, and ensure that the equipment used in the work area."

At first sight, Guo Ping was on the table of the temporary cafeteria in the project. The first impression was those pairs of God's eyes, with a refreshing inch and thin face, and it became more and more capable of being extremely capable. "At present, our most urgent problem is the power consumption of the work area, because the project area is close to Jiajin Village. In the early stage, the electricity consumption was borrowed in the village. Therefore, now you need to contact the local power supply bureau alone and set up a dedicated line. "Speaking of his expertise, Guo Ping has changed from a daily stability to a continuous.

When the author asked if there were other difficulties, Guo Ping smiled and said, "I have been in contact with TBM construction since 2013. From the beginning of Shendong, Shenhua to Jiakinshan today, in my opinion, there are difficulties. , But there are also many solutions, such as our TBM sub -components, 7.9 meters, and more than 6 meters after splitting. It is transported from other places to the Jiajinshan construction site. The survey of the survey, reinforcement and relocation in the later period, the original big problem is not easy to solve, the method is always more difficult than the difficulty. "

"Technical Poor Soldier" that overcome difficulties

"The pipe shed template must be fixed. Pay attention to the concrete when pouring the concrete to prevent grouting and return." Before entering the construction site, the sound of the project of the project of the project of the project is far from the wind in the valley. As a technical artist who has been fighting on the front line of construction, the highway tunnel project can be described as his "good food".

"The issue of progress is our top priority. Since the starting ceremony on December 26, 2021, we have run into the venue and quickly carried out the" complete laborer competition to complete the lane. Fully mobilize the enthusiasm of participating employees and sprint into the overall target of the tunnel into the hole. "The voice did not fall, and a cold wind mixed with sand and earth rushed to face, allowing everyone at the construction site to turn around. "Baoxing's imports are slopes. In winter, snow is not easy to melt. The exit end of Xiao Jin is a yang slope. The sunshine time is long, the climate is dry, and the wind is easy to fly." After the wind stops, Lu You pursed it while pursing the wind. The lip of the cracked lips explained that because the climate was dry, the builders' lips became purple and red. At the same time, the temperature in the winter mountain is below zero degrees Celsius. How to build in ice and snow is also a problem that needs to be overcome. Difficulty is the most word mentioned by the on -site builders. In just over a month of construction, from the construction of the tube shed to the construction of facilities such as mixing stations and power distribution rooms, Lu You has been sticking to the construction site. Putting 4930 meters of snowy mountains at an altitude of more than 4100 meters, we must also deal with a series of risks such as rock explosion, large deformation, gas and frozen soil. I couldn't help but tighten my lips.

"As the first project in China to use TBM for the construction of ordinary highway tunnels, we have no reference materials. The technical problems encountered during the construction process requires us to find a way to solve it. After all Those who eat crabs will use the domestic TBM highway tunnel construction in the future. We will use us as the reference standard. This is both pressure and motivation. "Looking at the tunnel hole that slowly formed in front of us, Lu You said firmly.

From the Red Army's hiking through the Jiajinshan 86 years ago, to the National Highway 351 to the mountain road, and then to the front line of the Jiakinshan Tunnel, the employees of the Jiajinshan Tunnel project adhering to the spirit of the railway soldiers of "Fengshan Chisa Road and the Water Bridge". "To do practical things for the masses" becomes practical action. After the Jiakinshan Tunnel runs through the traffic, every tourist who walks here will realize the comfort of "more like a thousand miles of snow, and the three armies will open after the three armies".

From turning to crossing, letting the sky change the way. Behind a tunnel, what we see is that the road of happiness is laying, it is to revitalize the dream of dreams.

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