China's northernmost section of high-speed railway passes the "universal testing machine" material test

Recently, Liao Dachang, director of the center laboratory of the Harbin-Qiqihar Railway Passenger Dedicated Line Engineering Project Department of China Railway 20th Bureau, told reporters that in order to ensure the safe construction of the current high-speed railway in the northern section of China, Harbin-Qiqi Passenger Dedicated, and provide accurate and reliable scientific basis for the construction front line, the center laboratory has used international advancedUniversal testing machine, used for tensile, compression, bending and shear tests of various metals and other materials, and compression tests of non-metallic materials such as plastics, concrete, and cement.

Liao Dachang, director of the central laboratory of the Haqi Passenger Special Project Department of China Railway 20th Bureau, said: "This tests the welder's technology. The time of passing the current voltage and voltage is the test of the electrician's technology. If the welding is not strong in this place, it means that there is a problem with the welder's technology, or the current and current voltage, so the steel bars are now qualified. This tensile experiment also requires a bending process test. If it is bent, we pull, and the step is pulled, and the second step is bent, and if the bend does not crack, it is also considered qualified."

Liao Dachang also told reporters that the central laboratory will study the different properties of concrete at different temperatures, try to meet on-site construction, and guide on-site construction through the data obtained from experiments, and build China's century-old high-speed railway.

Liao Dachang, director of the center laboratory of the Haqi Passenger Special Project Department of China Railway 20th Bureau, said: "Our national high-speed rail technology is internationally. Our line is also 300 kilometers and 350 kilometers. So our beam, the 32-meter beam of the high-speed rail, is also internationally progressive."

It is understood that the Harbin-Qi Railway Passenger Dedicated Line, the existing Binzhou Line and Binsui Line, form a passenger and freight channel that runs through the eastern and eastern parts of Heilongjiang Province and connects to the eastern parts of Mongolia. It is an important part of the east-west railway in the "three vertical and four horizontal" railway network in the Northeast region. It is one of the trunk lines of the national road network, with a total length of 286.893 kilometers. Since the railway line is located in a high-latitude area in China and is greatly affected by the climate and geographical environment, the requirements for material selection and construction are very strict.