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Dexing Tunnel, first long tunnel over 5000 meters on the Guiyang-Nanning high-speed rail line finish
Guinan high-speed railway project from northwestern Guangxi and southeastern Guizhou, with a design speed of 350 kilometers per hour.
http://fj.people.com.cn/BIG5/n2/2021/0601/c181466-34756214.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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http://fj.people.com.cn/BIG5/n2/2021/0601/c181466-34756214.html
貴南高鐵德興隧道貫通
fj.people.com.cn施工人員在進行鑽孔作業，為隧道爆破貫通做准備（5月30日攝）。 5月31日，貴陽至南寧高鐵全線首座超過5000米的長隧道——德興隧道貫通。貴南高鐵項目橫跨廣西西北部和貴州東南部，設計時速350千