Wide river, high pole, "he" also climbed...
Song Da 11 name appears almost everywhere on the construction site of the 500kV line circuit 3 Quang Trach (Quang Binh) - Pho Noi (Hung Yen). It is said everywhere because this contractor undertakes the construction of 24 construction packages and supplies steel poles on a construction site area of more than 500 kilometers.
The large amount of work, the huge value of the construction and installation volume (more than 1,600 billion VND) but the very short completion time is a huge pressure for businesses like Song Da 11, forcing contractors to "find soldiers, choose generals" to undertake tasks on the construction site.
In the context of everything being done at lightning speed, engineer Nguyen Van Dung - Deputy General Director of Song Da 11 Joint Stock Company, who has experience in many electrical construction sites, was assigned the permanent task of commanding the bidding packages on the entire 500kV line 3.
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Deputy General Director of Song Da 11 Nguyen Van Dung (striped shirt) reports on the construction progress of 500kV line circuit 3 to EVN/EVNNPT leaders. |
- You have participated in many power source and grid projects, so when you joined the 500kV transmission line project, circuit 3, Quang Trach - Pho Noi, did you feel "overwhelmed" by a "task" considered difficult by the investor, when there were only 6 months to complete a transmission project worth nearly 1 billion USD?
I am a technical person, I have been to many construction sites in the North and the South, but honestly, when I joined the 500kV line project, circuit 3, Quang Trach - Pho Noi, I also felt a lot of pressure! A "problem" when first held in hand to prepare to "solve", everyone in the electrical construction industry said it was difficult. In just over 180 days, how could we complete 1,177 column foundation positions to hang porcelain and pull wires? How could we "overcome the sun, overcome the rain" in places with harsh and difficult weather, terrain, and geology like the North Central region?
At that time, the Song Da 11 collective - from top to bottom - spread a spirit and determination: "It's difficult but we have to test ourselves to know our limits".
We started with that motto, so the "bottlenecks" on the construction site, at times seemingly impossible, were gradually overcome. Solving one difficulty after another was considered a difficult "problem", the entire work of Song Da 11 in this project was completed by us within more than 6 months.
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400-ton tire crane, with a reach of nearly 160 meters, serves the installation of a pole across the Luoc River. |
- On the entire route of more than 500 kilometers, Song Da 11 has bid for 4/7 column foundation positions considered the most difficult, with a height of 145 meters, and having to pull wires across the Red River and Luoc River... How can we "resolve" such high columns, deep rivers, and harsh weather conditions?
Song Da 11 has erected a total of 192 columns with a total weight of 22,000 tons of steel columns, including 2 foundation positions, columns crossing the Red River through Nam Dinh and Thai Binh provinces (positions 119, 120) and 2 positions crossing the Luoc River through Thai Binh and Hai Duong (positions 214, 215), with each column weighing 426 tons.
“Construction of the 500-circuit 3 line - a “problem” that when first held in hand to prepare to “solve”, everyone said it was difficult. In just over 180 days, how can we complete 1,177 column foundation positions to hang porcelain and pull wires? How can we “overcome the sun and overcome the rain”, Deputy General Director of Song Da 11 Nguyen Van Dung
We can imagine a column like that as high as a 40-story tower that we often see in big cities. But in reality, our column is constructed in the middle of very large fields, in the sky there is strong sun and wind, below there are vast rivers and streams... The Chairman of Vietnam Electricity Group (EVN) himself has visited these locations many times to direct.
This area is muddy and the ground is very weak, so the contractor had to drive tens of thousands of meters of piles here. During the construction process, a large crane (400 tons) with a reach of nearly 160 meters had to be used to conquer the height of 145 meters across the river. The mobilization of equipment to erect poles here is unprecedented in the history of power line construction in Vietnam.
In fact, if we did not mechanize and did not bring super-heavy equipment to the construction site but did it manually with a 200-ton small crane, it would take 2.5 months to complete, while in reality we completed it within 40 days. This increased the construction cost but the progress was guaranteed according to the investor's requirements.
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To climb to the top of the 145 meter high column, the column climber must be healthy and experienced and it takes 50 - 90 minutes to reach the top beam. |
- In addition to appropriate equipment and construction methods, the "experience" of the Song Da soldiers certainly played an important role in conquering the high points of this special project, sir?
Such difficult poles require workers with steely spirits to sit on them and work. I estimate that the entire electrical construction “village” currently has about 500 workers who are capable and strong enough to climb high poles. It takes 50-90 minutes to climb from the bottom to the top of the pole, depending on the experience and endurance of each worker, and not everyone can do this, because if they are not specialized, they can only climb up to a dozen meters, and when exposed to strong sunlight and strong winds, they will feel dizzy and lightheaded.
The entire Song Da 11 has about 80 workers who are able to climb poles, all of whom were mobilized for this important project. They worked in the harsh, hot weather of the North above, while below, in some sections, our workers had to swim or immerse themselves in the water to pull the rope across the Red River. During peak construction times, we also had to time the rope to avoid collisions with water vehicles on the river while stretching the rope to the pole.
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To construct the Red River crossing, the construction unit must coordinate with the Waterway Traffic Police to regulate traffic and ensure construction safety in the air and under water. |
“Your hand breaks rocks, my hand digs gravel” in the Central region
- I know there were times when Song Da 11 engineers and workers had to face very difficult situations, just like the lyrics "your hands break rocks, my hands dig gravel" on the sections passing through the Central region, sir?
When it comes to the Central region, everyone knows how harsh it is! Here, we have 6 packages managed by the Central Power Project Management Board, in which the most difficult location is Package 38 (Dien Chau, Nghe An section). It is difficult because the road to the construction site requires digging and filling in rocks, which is very difficult and steep. As for Package 37 (Nghi Loc, Nghe An section), it is literally "hitting" rocks, having to drill and knock for many days, even having to go through procedures to blast rocks to pour concrete.
“Every day, we start work from 5:30 am to 10 pm. My unit has had him for more than 7 months, but he only went home to visit his family… twice. That shows that he and his colleagues have sacrificed their personal lives and are very determined for the common work,” said Nguyen Van Dung, Deputy General Director of Song Da 11.
In the summer, the sun here is terrible! Sometimes, accidentally touching a steel pole outside makes you feel like your hand is being burned. The wind is just as strong as the sun. I remember one day when I was pulling the rope, the wind was so strong that it blew the steel wire away, and I had to wait for the wind to stop before continuing.
Furthermore, this section has pole positions located right in the middle of protective forests, primary forests, and production forests, forcing the protection zone to be closed and not allowed to touch the forest. If in the North, it is difficult to pull a cable across a wide river, here, we have to use aerial equipment to pull the cable across the forest canopy and are not allowed to cut trees or destroy branches.
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General Director of Song Da 11 Le Anh Trinh was present to encourage Song Da 11 workers working at a particularly difficult location in the Central region (Package 37, section through Nghe An). |
- The 500kV Quang Trach - Pho Noi transmission line project was completed in just over 6 months, and is considered by many to be a "Miracle of the Electricity Industry". As one of the units contributing to this "miracle", is there anything that the "soldiers and generals" of Song Da 11 have never told about their days working on the construction site?
Now that everything is done, the electricity is flowing smoothly from the Central region to the North. Thinking back, I can see that the efforts and political determination of all levels and sectors are enormous!
In summary, Song Da 11 has contributed more than 10% of the total project value. Arranging human and material resources to work at high intensity to meet the project's progress and quality requirements is a matter of course - any contractor must do so.
We participated in this project with the spirit of "surpassing ourselves", not avoiding difficult tasks, doing our best for the Song Da 11 brand. Even though there were items that, if calculated according to the economic calculations of the enterprise, would be a loss, we still overcame them.
Personally, I am the person who is always in command at the construction site, “working together” with the workers, only returning to the unit once a month to handle work. At the construction site, every day the workers start work from 5:30 am to 10 pm.
My unit, with him for more than 7 months, only went home to visit his family, wife and children… twice. Only then did we realize that he and his wife sacrificed their personal lives, and were very determined for the common work.
My superiors, every Saturday and Sunday, change clothes, get in the car and go to the construction site to inspect, urge, and visit. The work is hard, sometimes even dangerous, but with timely encouragement both mentally and materially, everyone is very secure.
Not only the leaders of my company but also the leaders of EVN, National Power Transmission Corporation (EVNNPT)... are often present at the scene to observe, any bad places are immediately corrected, any good places are immediately rewarded.
I think all those factors have motivated us to complete the project on schedule, as required by the Prime Minister.
Thank you very much!
Projects of similar scale take 2-3 years
The 500kV line 3 project is 519 km long, has 1,177 pole locations, passes through 211 communes/wards of 43 districts in 9 provinces, with a total investment of more than 22,300 billion VND. These are particularly important power transmission projects to increase the stable reserve at the North - Central interface, supplement capacity from the North Central region to the Northern region, and reduce the load on existing 500kV lines.
Under the strong direction of the Government, the Prime Minister, and the support of ministries, localities and people, EVN/EVNNPT has strived to complete and connect the power after more than 6 months. This is a record short construction time, as projects of similar scale take 2-3 years.
Source: https://baophapluat.vn/tuong-tran-song-da-ke-chuyen-bang-rung-vuot-song-vi-dong-dien-dat-nuoc-post529066.html
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