Shiziyang Tunnel

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Map of the Guangzhou–Shenzhen–Hong Kong Express Rail Link

The Shiziyang Tunnel is a high-speed railway tunnel under Shiziyang the northern part of the Pearl River estuary in China.[1]


The 10.8 km long tunnel is part of a 140 km high-speed line from Guangzhou to Shenzhen and Hong Kong. It is designed for speeds of up to 350 km/h - the fastest underwater tunnel in the world.[2] as well as being China's longest underwater tunnel.[3] This allows rail journeys between Guangzhou and Hong Kong to take only 40 minutes – much faster than the previous 2-hour journey. The Guangzhou–Shenzhen–Hong Kong express rail link is part of a broader expansion of high-speed rail in China; journeys from Beijing to Hong Kong will take only 8 hours.[4]


Construction began in November 2007, with a budget of CNY2.4 billion;[5] the tunnel was completed in 2011, and passenger services began on 26 December 2011.[4] Unusually, the tunnel boring machines were designed to be dismantled inside the tunnel.[5]


  1. ^ "News in Brief". Railway Gazette. 16 April 2011. Retrieved 14 August 2011. 
  2. ^ "China completes construction of world's fastest underwater railway tunnel". 12 March 2011. Retrieved 14 August 2011. 
  3. ^ "Study on Shiziyang Tunnel Engineering Geology and Shield Tunneling". 2010. Retrieved 14 August 2011. 
  4. ^ a b "Shiziyang underwater tunnel ready as part of High Speed Line to Hong Kong". HSL Zone. 15 March 2011. Retrieved 14 August 2011. 
  5. ^ a b "Construction Starts at Shiziyang Tunnel in China". Retrieved 14 August 2011. 

Coordinates: 22°52′40″N 113°34′25″E / 22.87778°N 113.57361°E / 22.87778; 113.57361