The start of the longest fast track in Chinas alpine region is expected to open in August.

category:Society
 The start of the longest fast track in Chinas alpine region is expected to open in August.


Hjia railway, located in the Middle East of Heilongjiang Province, is the key construction project of the national medium and long term railway network planning. It started construction in July 2014 and designed 200 km per hour. It is a passenger and freight line, with a total length of 343 kilometers. It is the longest fast Railway in the high and cold regions of China. The newly built HHA railway line is located in the high cold zone and runs in the weather of minus 35 degrees Celsius in winter. During the construction period, the construction of China Iron building belongs to the eleven Bureau of China Railway, the nineteen Bureau, the twenty-two Bureau, the twenty-three Bureau, the twenty-five Bureau and the electrification Bureau to overcome the long winter freezing period, the short effective construction time and the complicated geological conditions. The rock layer is weak and broken, the underground water content is big and so on. The method of innovation is innovating. The tunnel adopts the cold proof measures such as the drainage ditch of the heat preservation center. The subgrade strictly controls the fine particle content of the filler. The foundation bed of the line is filled with non frost heave AB group soil to ensure the quality and safety of the line in the high cold weather, and accumulate experience for the railway construction in the alpine region. It is reported that during the joint commissioning test, we use the passenger and freight train, the test train, the comprehensive test train and the related testing equipment, and make comprehensive debugging on the whole line system under the prescribed test speed, and evaluate and verify the system functions of power supply, contact network, communication, signal, customer service, natural disaster and foreign object intrusion detection. And the applicability of subgrade, track, turnout, bridge and other structural engineering, so as to make the functions of each system meet the design requirements and provide a scientific basis for the smooth operation of the whole line. Source: SASAC editor in chief: Wang Zheng _NN7526 It is reported that during the joint commissioning test, we use the passenger and freight train, the test train, the comprehensive test train and the related testing equipment, and make comprehensive debugging on the whole line system under the prescribed test speed, and evaluate and verify the system functions of power supply, contact network, communication, signal, customer service, natural disaster and foreign object intrusion detection. And the applicability of subgrade, track, turnout, bridge and other structural engineering, so as to make the functions of each system meet the design requirements and provide a scientific basis for the smooth operation of the whole line.