噪声与振动控制2019，Vol.39Issue(1)：136-139,4.DOI:10.3969/j.issn.1006-1355.2019.01.026
成都地铁钢弹簧浮置板道床减振性能分析
Analysis of the Vibration Reduction Performance of Steel Spring Floating Slab Track Bed of Chengdu Metro
摘要
Abstract
In order to evaluate the vibration reduction effect of the steel spring floating slab track bed of Chengdu metro, the in-situ vibration measurements of the steel spring floating slab track and the corresponding traditional track are carried out respectively at the straight section and curved section in the circular shield tunnel under the same line condition. The vertical vibration characteristics of the tunnel wall and the actual vibration reduction effect of the steel spring floating slab track are analyzed in both time domain and frequency domain. The results show that the steel spring floating slab has good vibration reduction effects for tunnel wall in both the straight section and the curved section of the circular tunnel. The vibration reduction effect of the steel spring floating slab reaches up to 22.16 dB at the straight section and 19.15 dB at curved section respectively. The significant vibration reduction frequency range varies from 25 Hz to 200 Hz for the straight section and 40 Hz to 200 Hz for the curved section. However, the vibration amplification is shown in the range from 6.3 Hz to 16 Hz.关键词
振动与波/地铁/钢弹簧浮置板/现场振动测试/减振效果Key words
vibration and wave/metro/steel spring floating slab/in-situ vibration measurement/vibration reduction effect分类
交通工程引用本文复制引用
韩艺翚,贺玉龙,李怀龙..成都地铁钢弹簧浮置板道床减振性能分析[J].噪声与振动控制,2019,39(1):136-139,4.基金项目
国家自然科学基金资助项目(51608460) （51608460）
四川省科技计划资助项目(2018JY0328) （2018JY0328）
