Analysis of Train Interference Test

Abstract

In order to grasp the vibration of the railway surrounding when the train travels .The test is adopted along the high-speed line. In the testing process, three typical line segments (roadbed, bridge, tunnel) are selected, the train runs through the measuring point at different speeds, collecting data of environment vibration. By analysis the peak acceleration of environment vibration, there is negative exponent relationship between the distance away from the railway and acceleration. Compare with bridge and tunnel, the relationship between the critical distance tested 1 gal vertical vibration acceleration in roadbed section and speed is not obvious; In the bridge and tunnel section, the higher the speed, the corresponding critical distance In order to avoid interference of a running train mistakenly triggered earthquake early warning system, train travelling interference analysis is required in the pre-trial stage. The test is a part of a comprehensive environmental testing. Through testing and data analysis of a number of high-speed railway train interference, we can get the proper method to arrange the station of early warning system for the high-speed railway, and verify system stability of providing the basic data for the stations laid. The test can provide the basis for the development of technical standards for system validation and evaluation of the high-speed railway earthquake monitoring and early warning system. Through on-site verification test, suggestions are given for improvement of earthquake monitoring and warning system.