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Longest tunnel completed ahead of schedule! Major progress made in the construction of the China-Laos Railway


Release Time:

2020-01-06

The China-Laos railway is a connectivity cooperation project personally promoted by the leaders of both China and Laos. It is also a project that connects China's Belt and Road Initiative with Laos's strategy of transforming itself from a landlocked country to a land-linked country. Starting from Mohan/Boten, the border crossing between China and Laos in the north, and ending in Vientiane, the capital of Laos in the south, the railway is 414.33 kilometers long. It is the Laotian government's top priority project. The railway is built entirely using Chinese management and technical standards, with a design speed of 160 kilometers per hour. Currently, 86% of the civil engineering work has been completed, and it is planned to be completed and opened to traffic in December 2021. Upon completion, it is expected that travel between Kunming and Vientiane will be possible within a day. At the same time, it will greatly improve local transportation efficiency and level, promoting trade, investment, tourism development and external exchanges.

The China-Laos railway is a connectivity cooperation project personally promoted by the leaders of both China and Laos, and it is also a project that connects China's Belt and Road Initiative with Laos's strategy of transforming itself from a landlocked country to a land-linked country. Starting from Mohan/Boten, the border crossing between China and Laos in the north, and ending at Vientiane, the capital of Laos in the south, the railway is 414.33 kilometers long. It is the Laotian government's top priority project. The railway is built entirely using Chinese management and technical standards, with a design speed of 160 kilometers per hour. Currently, 86% of the civil engineering work has been completed, and it is planned to be completed and opened to traffic in December 2021. After the completion of the entire line, it is expected that travel between Kunming and Vientiane, Laos will be possible within a day. At the same time, it will greatly improve local transportation efficiency and level, promoting trade, investment, tourism development, and external exchanges.

 

 

 

On December 27, a grand completion ceremony was held for the Sencun No. 2 tunnel of the China-Laos railway, which was constructed by Power Construction Corporation of China. Located in an uninhabited area, the Sencun No. 2 tunnel is 9384 meters long and is a controlling project of the entire line. The tunnel is located in a primeval forest deep in the mountains, with steep terrain, complex geology, and abundant groundwater resources. The project adopts a simultaneous excavation mode of "inlet + transverse tunnel + inclined shaft + outlet", with four construction areas and six working faces. Among them, the inlet and transverse tunnel areas are 3862 meters, and the outlet and inclined shaft areas are 5522 meters. As the civil engineering contractor, Power Construction Corporation of China overcame many difficulties. Facing the problem of abundant groundwater systems during excavation, it used the accumulated construction experience in hydropower projects in China and selected suitable materials, effectively solving the problem of water leakage during excavation. Our company, as a special material supplier, provided some materials for the water leakage treatment of the project. (News source: Power Construction Micro-speech)