[Explanation] Under the scorching sun, railway rails will also become "ill", causing swelling, which can seriously deform the rails and endanger the safety of railway operation.

In Xi'an, there is such a group of people. They are holding professional equipment to shuttle between the rails for "inquiry", and deal with the problematic rails in time to ensure the safe operation of railway trains.

　　Cheng Fei, 29 this year, is an employee of the Xi’an Public Works Department. Due to years of railway work, Cheng Fei’s skin has been tanned, and his hands have burned many scars due to the high temperature. However, he has never flinched, and Stick to this post for 6 years.

It is understood that Cheng Fei is mainly responsible for inspecting rail expansion and other issues, and will deal with it in time and report the situation when found.

This type of work is also known as the "anti-expansion guard" between stocks.

　　[Simultaneous] Xi'an Public Works Section, Xi'an Maintenance Zone Job Engineering Flight

　　If it is found that the rail has expanded, or the sleeper is separated from the seam in a deformed and twisted state, the first thing we do is to tighten the fasteners within 50 meters before and after, and do not let it develop.

The second is to cool down the rails, such as by spraying water or laying anti-expansion cloth.

The third point is the normal and permanent treatment, which is to cut the rail, cut it with oxygen, cut it diagonally, and then release the stress and then replace it with a section of rail and then go up. This is the general method of processing.

　　[Explanation] The sun is scorching the hot ground. Cheng Fei and his colleagues are carrying out anti-expansion inspections in key areas of the railway under the scorching sun. The hot air discharged from the compressors of several assembled trains is almost suffocating, with the temperature reaching 60 degrees Celsius. .

The reporter saw at the scene that the work clothes of Cheng Fei and his colleagues had been soaked with sweat, and the sweat on their cheeks dripped down the tip of their nose, but they did not care about wiping, holding the rail thermometer and the wrench, according to The planned route continues to inspect.

　　[Concurrent period] Li Bo, an employee of Xi'an Maintenance Workshop, Xi'an Public Works Section

　　It's really hard, the temperature is high, and the weather is hot, but I think it's worth it, because the job that I do has ensured the safety of our passengers. You can also see the traffic flow of the Xi'an station here. It is also very big, but I think my little guard can guarantee the safety and personal safety of this trip. I think no matter how hard it is, no matter how tired it is, I think it is quite meaningful on such a hot day.

　　[Explanation] According to reports, Cheng Fei and Li Bo's maintenance work area is responsible for the anti-expansion inspection of the 5 km line and 43 sets of turnouts in the Xi'an Railway Station every day.

In a shift, an average of nearly 7 hours of continuous work per day under the scorching sun, walking more than 30,000 steps.

　　[Concurrent] Shi Jianguo, Director of Xi'an Line Workshop, Xi'an Public Works Section

　　In our daily operations, we require our high-temperature travelers to keep three belts, wear straw hats, bring water, and bring medicines. Medicines are the Huoxiang Zhengqi water for heatstroke prevention.

Our high temperature anti-expansion personnel are mainly responsible for checking the geometrical changes of the line during the high temperature period, just to ensure the safety of driving.

In this case, although our operators are very hard, but in order for the train to pass smoothly, safely, and punctually on the line under our jurisdiction, we should make our own contributions.

　　Mei Yitaki Gaocheng reports from Xi'an

Editor in charge: [Li Yuxin]