Behavior and Control of the Ballastless Track-Subgrade Vibration Induced by High-Speed Trains Moving on the Subgrade Bed with Mud Pumping
作者： Junjie Huang , Qian Su , Ting Liu , Wei Wang
DOI: 10.1155/2019/9838952
关键词:
摘要: This paper investigates behavior and control of the ballastless track-subgrade vibration induced by high-speed trains under mud pumping occurring in subgrade bed. The characteristics bed track structure are analyzed visual observation nondestructive testing. Then, based on injection low-viscosity epoxy resin (LVER), repair procedures for proposed. A variety on-site tests performed with without also after reinforcement to analyze trains. test results show that can significantly increase vertical acceleration displacement slightly decrease surface. After reinforcement, abnormal be effectively controlled make close normal. In addition, ratio surface concrete base is proposed as a way evaluate effectiveness using LVER, attenuation feature track-subgrade.
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