KUNMING: The construction of a tunnel on the Kunming-Vientiane Railway to link southwest China's Yunnan Province with Laos was completed on Sunday (April 19).



The Jingkuan No. 2 Tunnel, about 4.6km long, is located in Jinghong City of Yunnan.



The tunnel with a super-large exit has a 80-meter stretch with fault surface of 249 square meters. The design is to reserve connection conditions for the future expansion with a new railway line.



"Due to the large span of the section, the technical team has innovated a new patented technology to effectively avoid the risk of tunnel collapse," said Wang Guanying, a project manager of China Railway 22nd Bureau Group Co. Ltd.



The tunnel is on the 508 km Yuxi-Mohan section of the Kunming-Wanzhou Railway, which is scheduled to be opened simultaneously with the Boten-Vientiane section in Laos to be completed by the end of 2021.



The cross-border railway is a major project built under the Belt and Road Initiative.



The 1,000 km railway will slash the travel time between Kunming and Vientiane to half a day. - Xinhua/Asian News Network

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