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根据国内外资料,虽然无碴轨道具有轨道稳定性高、刚度均匀性好、结构耐久性强、维修工作量显著减少等优点,但与有碴轨道相比,存在弹性较差、环境振动和噪声较高的缺点。为解决这一问题,国内外进行了大量研究工作,提出了不同解决方案,主要有:道床隔振、增加线路下部结构的刚度和质量、吸声道床、声屏障等,取得了一定的效果。
According to the data both at home and abroad, ballastless track has the advantages of high stability of track, good uniformity of rigidity, strong durability of structure and significant reduction of maintenance workload. However, compared with ballasted track, ballastless track has poor elasticity, environmental vibration and noise High disadvantage. To solve this problem, a great deal of research work has been done at home and abroad, and different solutions have been put forward. The main solutions are as follows: road bed vibration isolation, increasing rigidity and quality of substructure, sound absorption channel bed and sound barrier, and achieved certain results.