DYNAMIC STUDY ON RUNNING SAFETY OF HIGH-SPEED TRAIN ABOUT DIRECT TYPE EARTHQUAKE

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The influence to exert on the derailment limit of the setting position and the stiffness of the anti-derailment guard-rail to the horizontal-laterally vibrating track was examined by using the simulation system which analyzes a vehicle running safe-limit. Moreover, the effect of the derailment prevention to the difference of seismic wave-shape and the track-prank characteristic and the vehicle specification was confirmed, As a result, it found that the derailment limit on case of the earthquake by the proposed anti-derailment guard-rail do not undergo big influence to the running speed of the train. Further, it found that the derailment limit improved by about 40% by that about 60mm of the derailment were the interval of the anti-derailment guard-rail and the rail to the vibration acceleration of the track lateral vibration of 1-2 Hz which become a problem, In this way, by this study, one improving technique could be proposed in the derailment limit of the high-speed train about direct type earthquake