High-speed link through karst country
Print Edition
THE construction of China’s first high-speed railway running through the country’s southwest karst regions was completed yesterday.
The 857-kilometer line which links Guiyang, capital of Guizhou, with economic powerhouse Guangzhou, is expected to be fully operational on Friday.
Guizhou has the world’s most typical karst plateau landscape, which was inducted as a UNESCO World Heritage Site in 2007. Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone.
The railway had half of its length run through 238 tunnels, two of them more than 14 kilometers long, said Zhang Jianbo, Guiyang-Guangzhou High-Speed Railway Co’s general manager. It took builders four years to drill the longest tunnels. Construction was often disrupted by breaking rocks, rupture of strata and water infiltration, Zhang said.
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