The Research Of Operation Safety Technology Based On Alignment Design Of Highway Tunnel Group

In recent years, with the rapid development of freeway tunnel construction and the development of Highway tunnel group, Introducing the concept of the highway tunnel group, definition of linear elements tunnel, analysis of linear unreasonable combination, establishing reasonable linear of highway tunnel group, which are needed to resolve. Taking Xi'Han QinLing freeway tunnel group as an example, analyzing the linear conditions, the influence of vehicle traffic behavior and traffic safety, puts forward improvement project alignment design of highway tunnel group, which are providing the theoretical basis for the freeway tunnel safety protection technology, and the countermeasure research of the safety operation and management.Taking QinLing freeway tunnel group as the research object, QinLing freeway tunnel group contains ZhuQue tunnel, QinLing 1 tunnel, QinLing 2 tunnel and QinLing 3 tunnel,firstly,determined the concept of the highway tunnel, Simply analyzed each safety factors of highway tunnel group; through the investigation of the actual data, analyzing the horizontal alignment, Cubes linear, Cross-sectional linear and flat linear combination of longitudinal of QinLing highway tunnel group.Secondly, Combined with the actual data investigation, analyzed the speed characteristics of the QinLing highway tunnel group upwards sections, analyzed the psychological change features of drivers and the speed variation characteristics in different linear conditions, defined the speed influence model of different linear conditions by fitting speed and observation position.Finally, analyzed the different effects of linear on traffic safety, Combined with the velocity change characteristics under the condition of different linear combination, Puts forward some improvement scheme in the design of tunnel group, in order to improve the safety of driving in tunnel group sections.