为抑制振动及噪声对沿线敏感点的影响，地铁工程中采用了多种型式的轨道减振措施，但轨道减振措施在青岛等城市硬岩地质条件下的减振效果尚无定论。分析了三种典型轨道减振措施在岩石地质条件下的减振效果，压缩型减振扣件、减振垫浮置板和钢弹簧浮置板的减振效果分别为8.1dB、12dB和17dB左右。研究了浮置板减振组合道床、阻尼减振道床以及多等级减振通用预制道床等新型减振轨道结构减振效果，上述三种新型轨道减振结构型式的减振效果分别为18.2dB、6～8dB和10.4dB～17.1dB。研究结果可为青岛及其他城市后续地铁工程建设提供参考借鉴。

In order to suppress the influence of vibration and noise on sensitive points along the line, various types of track vibration reduction measures are adopted in subway. However, the vibration reduction effect of track vibration reduction measures under hard rock geological conditions in Qingdao and other cities is still uncertain. The vibration reduction effects of three typical track vibration reduction measures under rock geological conditions are analyzed, the vibration reduction effects of compression vibration absorber fastener, elastic pad floating slab and steel spring floating slab respectively is 8.1dB, 12dB and 17dB. The vibration reduction effect about track-slab hybrid system, damping track bed and multi-grade vibration attenuation general precast track bed are also researched in this paper, the vibration reduction effects of above three new track damping structure types respectively is 18.2dB, 6-8dB and 10.4-17.1dB. Research results can provide reference for the follow-up subway construction in Qingdao and other cities.

青岛地铁环境减振降噪综合技术研究（合同编码：M8-ZX-2021-036）