The 286.8km railway, which includes substantial elevated sections, is expected to be completed in 2018.
Structures on the route include the Chenjiafan Bridge, which should be finished next month.
The Chinese government and its official news agency Xinhua have published a series of photos showing this week's activities on the Fuyang section of the Hangzhou-Huangshan High-Speed Railway in Zhejiang province.
The 286.8km railway, which includes substantial elevated sections, is expected to be completed in 2018.
Structures on the route include the Chenjiafan Bridge, which should be finished next month.