声屏障工程是防治铁路噪声影响的有效措施 ,声学设计是保证声屏障工程降噪效果的重要手段和方法。通过郑铁一中声屏障工程声学设计研究 ,给出了声学设计中应考虑的主要内容及解决方法。声屏障建成后 ,各主要评价点的实际降噪效果与理论计算值相差不超过 1dB ;主要评价点的 2 4h等效连续A声级平均降噪量为 10 4dB ,超过预定目标值 2 4dB ,降噪效果非常显著 Sound barrier works is an effective measure to prevent and control railway noise. Acoustic design is an important means and method to ensure the noise reduction effect of sound barrier works. Through the study of acoustic design and engineering of acoustic insulation in Zheng Tie-yi, the main contents and solutions to be considered in acoustic design are given. After the sound barrier is completed, the actual noise reduction effects of the main evaluation points are no more than 1 dB away from the theoretical calculation values. The average noise reduction level of the 24 hours equivalent A continuous sound level of the main evaluation points is 10 4 dB, which exceeds the predetermined target value of 24 dB, Noise reduction effect is very significant