Yes, Qinghai-Tibet Railway including the amazing Guanjiao Tunnel is a construction miracle of mankind.
After a one-day technical conference dealing with innovation and productivity in tunnelling, followed by a one-day awards conference, the judges of the 2016 series of the ITA Tunnelling Awards revealed their choices and awarded recognition to eight outstanding projects and announced the Young Tunneller of the Year and a Lifetime Achievement Award to Dr Martin Herrenknecht. After a detailed examination process, 100 nominations for the nine Award categories were reduced to 30 finalists who had the opportunity to present and support their projects during the awards conference and to an audience of their peers.
The categories, the shortlisted projects and the winners are:
Major Project of the Year exceeding €500 million
Shortlisted:
- Klang Valley MRT tunnelling works, Malaysia
- Singapore Cross-Island cable tunnel project, Singapore
- Central–Wan Chai Bypass, Causeway Bay, Hong Kong
Winner: The new Guanjiao Tunnel of the Qinghai–Tibet Railway, China
The project is a key element of the second line of the Xining-Golmud section of the Qinghai-Tibet railway with a total length of 33km. The drill+blast twin tube tunnel lies at an average elevation of 3,400m and operates electrified freight and passenger trains with a design speed of 160km/hr. Construction began in November 2007 and the tunnel opened for operation in December 2014.The total investment was 4.96 billion RMB or $US730 million.
Tunnelling Project of the Year from €50 million to €500 million
Shortlisted:
- Venda Nova III Repowering Project, Portugal
- Shenzhen Metro Line 9, China
Winner: Downtown Line 3, Fort Canning station and tunnels, Singapore
As Singapore’s underground space becomes more congested, the construction of new underground metro lines has become more challenging, complex and now pushing the boundaries of engineering. The Fort Canning station and tunnels metro project encountered many challenges including cutterhead interventions to remove foundations of buildings and close proximity to national monuments and in-service metro lines with only 1m separation. Excavation so close to operating tunnels, which carry thousands of commuters daily, poses exceptional risk. The project has since been completed successfully with no disruption to any community partners.
Outstanding Project of the Year of up to €50 million
Shortlisted:
- Xinzhuang Station–Jimingsi station tunnel, Nanjing Metro Line 3, China
- The Stiberg Garage, Sweden
- Shenzhen urban rail transit Line 9 tunnel, China
Winner: Chongqing Hongqihegou Metro Station, China
The Hongqihegou interchange metro station links Line 3 and Line 6 of the Chongqing Metro. It is excavated in moderately weathered sandstone and sandy mudstone beneath a densely developed area of the city and under the main road to the airport. The minimum overburden is 8.6m and the ratio of overburden to span is 0.4. Its maximum excavation section is 760m. The whole tunnel section is divided into four drifts. Two are on the top and another two in the bottom to be excavated. In this way, four drifts can be driven simultaneously. By using the inherent bearing capacity of inner rocks supporting, the horizontal and vertical temporary support of the tunnel is saved. Moreover, the “time-space” effect is controlled precisely for the safety of the force transmitting between primary support and final lining.
Please dont troll
And hahahaha.. I could not resist with this one.. this is good.
I was debunking liars.
First, using a photo from China, then lie about the lie.
. Speed up campaigns, heavy hauling and Railway Station redevelopment should be prioritized
