Analysis of Vibration Characteristics and Isolation Measures of Railway Underpassing Airport Terminal

With the rapid development of urbanization and industrialization in modern society, the large-scale integrated hub must meet the seamless connection of various modes of transportation, thus the railway undepassing the airport terminal has become the main choice for engineering construction scheme. When the train under passes the airport, the vibration due to the wheel-rail excitation will affect the airport office area, commercial area and passenger waiting room in the terminal. With consideration of vibration source system, transmission process and vibration receiving body, this paper established the vehicle-track coupled model and the tunnel-soil-surface building integrated coupled model respectively to analyze the vibration characteristics of railway underpassing airport terminal as well as the effect of the corresponding vibration isolation measures.