More and more high-speed rails are shuttled on the land of the motherland, and one tunnel after another is also built up. In order to ensure that the tunnel lining is not damaged by the fatigue vibration of the contact net, the fine installation requirements of the high-speed contact net are met, and the contact network hook inside the tunnel adopts the high-speed tunnel slot type embedded technology scheme, which ensures the construction is foolproof.
There are many advantages of the high-speed railway tunnel slotted parts, especially in the high-speed railway network. The dedicated line design speed is 350 km, and the speed-up space is reserved. According to the research report, a wind speed of 49 m/s should be considered when the train speed reaches 350 km. The maximum tensile force and shear force at each bolt are calculated in the tunnel according to the maximum structural design wind speed of 49 m/s. At the beginning of 2006, the Ministry of Railways Engineering and Management Center discussed with the relevant units the feasibility of various programs, and finally determined the plan for the use of high-speed railway tunnel troughs. This solution is determined by the load requirements, safety performance requirements and installation requirements of the catenary. It is not determined by humans, because it can be seen that the advantages of the high-speed railway tunnel slotted parts are great.
1) The first priority is that the high-speed railway tunnel trough embedded is conducive to forming a reinforced integral linear structure in the lining surface layer, not a single point of force, but a uniform force.
2) Secondly, the force and vibration of the contact net are not damaged, and the integrity of the tunnel lining is not damaged. At the same time, the fine installation standard of the high-speed contact net can be achieved, and the strength requirements of the high-speed train wind power to the installation equipment and the buried foundation in the tunnel can also be met.
3) The high-speed tunnel slotted embedded parts are closely attached to the lining trolley. After the mold is removed, it is flush with the lining surface, and the appearance is round and beautiful. The post-delivery effect is good.
Therefore, we can find that the use of high-speed rail tunnel-type embedded parts in high-speed rail tunnels is a very effective way. Mankate Technology has also cooperated with high-speed rail construction units for several years in its 15 years of production experience to participate in the construction of high-speed rail tunnels. If you are interested in this product, please call our one-stop service hotline: 400-894-5118.
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