Harbin-Dalian high-speed railway is the first high-speed railway with a design speed of 350km/h in cold regions of the world. As the overall design unit, the Third Railway Institute insists on achieving the goal of world-class passenger dedicated line through technical research and innovation. In the process of engineering design and construction, various measures have been taken to design six major systems, such as public works, traction power supply, communication signals, EMU, operation scheduling and passenger service, to realize system integration, formulate the design capacity of large systems and optimize the matching of each system.
Aiming at this project, the Third Railway Institute has carried out a series of research projects, such as frost heaving structure and design parameters of railway subgrade in cold region, frost heaving characteristics and prevention measures of railway engineering in cold region, frost heaving technology of subgrade bridge and culvert of passenger dedicated line in cold region, durability technology of railway concrete structure in cold region and so on. A series of measures to prevent subgrade frost heaving have been strengthened, mainly including filling non-frost heaving fillers in the freezing depth of subgrade, setting drainage facilities in the sections with subgrade height less than seasonal freezing depth, and setting anti-frost heaving berms in the sections with low embankments. The crack-resistant bidirectional prestressed CRTSⅰ Ⅰ slab ballastless track structure is adopted, and the CA mortar meeting the technical performance in severe cold area is developed, which overcomes the weak link of track structure. Snow melting facilities are set at the turnouts where the EMU passes, catenary deicer is set in the traction power supply system, and snow disaster monitoring subsystem is set in the disaster prevention monitoring system. In the bridge design, the specially designed 56m prestressed concrete double-line simply supported box girder was adopted for the first time, which reduced the project investment. By optimizing the construction organization, the setting of beam yard is reduced and the investment is saved by tens of millions of yuan. 20 13 Beijing-Shanghai high-speed railway designed by the Third Institute of Iron and Steel, Zhengzhou Yellow River highway-railway dual-purpose bridge of Beijing-Guangzhou high-speed railway, and Taihang Mountain tunnel group of Shitai high-speed railway surveyed and designed by the Third Institute of Iron and Steel on 20 14 won the Fidyk project excellence award. The Fidyk Railway Engineering Award won by the Third Railway Institute is the largest in the industry.
At this year's annual meeting of Fidyk, the organization awarded 19 annual Fidyk Project Awards, including 5 Outstanding Project Awards and 19 Excellent Project Awards. China won two Excellence Awards and five Excellence Awards, among which the Harbin-Dalian Passenger Dedicated Line, one of the two railway projects that won the Excellence Award, was designed by the Third Research Institute of Railway, and China won seven awards, ranking first in the world. China won the most prizes in the Fidyk Project Award for three consecutive years.
Fidyk is an internationally renowned consulting engineer organization, established in 19 13, and its awards are praised as "Nobel Prize" by the industry.