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　　11month3Day,2020The annual National Science and Technology Awards 188bet app Conference was grandly held in Beijing，Hosted by China Railway Group“High-speed railwayⅢProfile ballastless track system technology and application”The project won the second prize of the National Science and Technology Progress Award.

　　Ballastless track system is one of the core technologies of high-speed railway，Adopt layered concrete structure to replace traditional granular gravel track bed，Has high smoothness、High stability、Advantages such as less maintenance。Japan、Germany had a long-term monopoly on this technology。To meet the initial construction needs of high-speed rail，my country’s introduction of technology and localization has formedIType,IIPatterned ballastless track system，Due to climate、Differences in geological conditions and technical limitations，High-temperature upward arching and low-temperature fractures occurred one after another、Structural layer separation joint failure and life mismatch、Instable track circuit 188bet app information transmission and other issues，Significantly affects the quality of orbital service，Maintenance costs far exceed expectations，Some areas have to slow down operation。In order to comprehensively solve the above problems，Breaking foreign technical barriers，With national and ministry support，The project has gone through more than ten years of technical research，Collaborative innovation through industry-university-research-application，Overcame the collaborative work of multi-layer structural systems under complex environmental conditions、Stable and reliable、Three major technical problems in high-precision and efficient construction，The formation of a high-speed railway with independent intellectual property rightsⅢComplete set technology of profiled ballastless track system，my country has become the original country of high-speed rail ballastless track system，For high-speed rail“Go out”Laid a solid foundation. The main innovation 188bet mobile login points of the project include:

　　1.Created speed350New method for designing ballastless track structure system of kilometer high-speed railway。Carried out full-scale model tests under different environmental conditions、Long-term monitoring test of real vehicle power performance and operating status and completion of massive data statistical analysis，Created high-frequency train dynamic load、Temperature load、Refined static and dynamic analysis model of ballastless track under the action of multi-field coupling such as foundation deformation，Revealing the deformation coordination mechanism and vibration transmission rules of multi-layer structures，Proposed a global environmental design method and parameter system for ballastless tracks，Solved the problem of collaborative work of multi-layer structural systems under the combined effects of complex environments and high-speed trains。

　　2.Invented speed350New ballastless track structure system for kilometers of high-speed railway. First of all“Vertical double-layer composite, longitudinal stress relief”Ballastless track composite structure system，Stress relief achieved、The track geometry is maintained and each structural layer has the same lifespan；Innovated high elasticity、High base frequency、High fatigue strength ballastless track fastener technology，Overcame the adaptation of rail fastening parts and backing plates under large deformation conditions、High frequency resonance problem；Innovated multiple insulation technology for ballastless track system under transient alternating strong magnetic field and track circuit continuous magnetic field environment；Solved the technical problem of stable and reliable structural system under the combined effect of complex environment and high-speed train。

　　3.New speed350New technology for high-precision and efficient construction of ballastless track structure system for kilometers of high-speed railway。The first high-precision and efficient intelligent manufacturing technology 188bet online casino games of bidirectional pre-tensioned prestressed track slabs based on the flow unit method，Developed a complete set of laying equipment based on inertial navigation and orbit precision measurement network，Formed based on the design space line shape、Digital construction technology of ballastless track structure system with track height and smoothness as the core，Solved the technical problem of millimeter-level efficient construction of ballastless track。

　　Project formation standards19item, presided over the preparation of the International Organization for Standardization (ISO) Ballastless track system standard; Obtained invention patent32item, utility model66items, including international patents8item; software copyright3item; published monograph4Department, published papers170More articles; won the provincial and ministerial level special award1First prize, first prize3item, China Patent Excellence Award3item。The project results are currently in Beijing、Jingxiong、Promotion and application 188bet game of dozens of high-speed rail lines such as Shanghehang and Shanghehang，Mileage exceeded1.2Ten thousand kilometers, the speed per hour for the successful launch of Zhengzhou-Xu High-speed Railway420Kilometer rendezvous and reconnection comprehensive tests have provided solid support，And has been applied in high-speed railway projects such as Jakarta and Bandung in Indonesia，It is also the only one so far that can“Go out”’s high-speed rail ballastless track system，The overall results have reached the international leading level。

CRTS ⅢPatterned ballastless track