| Citation: | YUE S.Research on environmental impact assessment of urban rail transit track roughness on vibration source intensity[J].Journal of Environmental Engineering Technology，2022，12（6）：1875-1881 doi: 10.12153/j.issn.1674-991X.20220572
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In order to study the vibration environmental impact of the unevenness of urban rail transit, by applying the vehicle-track space coupling dynamics model and the track-tunnel-soil three-dimensional finite element-infinite element coupling model, and verified with the measured data of vibration source intensity, the speed correction coefficients under the train speed of 100-120 km/h and different track irregularity spectrum conditions was obtained. When the track conditions were severe, the recommended value of correction coefficient of vibration environment influence speed was 36.2; when the track conditions were normal, the recommended value of correction coefficient of vibration environment influence speed was 31.0; when the track conditions were good, the recommended value of correction coefficient of vibration environment influence speed was 23.3. This research could provide a reference and basis for the evaluation of urban rail transit vibration environmental impact and vibration reduction design.
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