Construction of Than Vu tunnel through the mountain, more than 1km long, on the North-South expressway
Quang An - November 10, 2022 07:28
(Baonghean.vn) - Currently, contractors are mobilizing maximum human resources and vehicles, working continuously in 3 shifts/day to construct Than Vu tunnel, part of the North-South expressway section passing through Nghe An province.
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| The North-South Expressway project, Dien Chau - Bai Vot section, has a total investment capital of more than VND 11,157 billion. Of which, the investor's mobilized capital is about VND 5,090 billion, the State's capital participation is more than VND 6,067 billion. The project started construction in May 2022, the construction period is 36 months. Than Vu tunnel connecting Dien Phu commune (Dien Chau district, Nghe An) and Nghi Dong commune (Nghi Loc district, Nghe An) is an important project on the route. Photo: Quang An |
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Construction of Than Vu tunnel. Clip: Quang An |
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| It is known that the Than Vu tunnel is being constructed by two contractors, Hoa Hiep Company Limited and Cienco4 Group. At this time, the Than Vu tunnel construction site is bustling with machinery and hundreds of workers are working. In the photo: Workers are constructing the anti-landslide slope above Than Vu tunnel. Photo: Quang An |
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| Heavy, reinforced arched iron trusses weighing hundreds of kilograms are used to lift the roof of the tunnel, assembled with machinery at the construction site, ready for construction. Photo: Quang An |
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| Than Vu Tunnel is 1,280m long, passing through Than Vu Mountain in Dien Chau - Nghe An. To date, construction units have only drilled about 10% of the total length of the tunnel. Photo: Quang An |
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| To ensure the project's progress, the two contractors mobilized maximum manpower to work 3 shifts/day. Photo: Quang An |
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| Despite the difficult construction conditions, workers still work hard to ensure the project's progress. Photo: Quang An |
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| Workers drill anchors to secure the steel trusses that make up the tunnel frame. The outside of the steel frame is a concrete layer. Photo: Quang An |
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| Ready-mixed concrete is sprayed directly onto the fixed steel frame system. The special concrete hardens almost instantly. Photo: Quang An |
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| It is expected that it will take a year for the Than Vu tunnel to be opened. Construction work inside the mountain is very difficult. As the tunnel is dug, the iron frame is shaped accordingly. Photo: Quang An |
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| The entrance to Than Vu tunnel in Dien Phu commune, Dien Chau district has been revealed after many months of construction. Photo: Quang An |
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