摘要
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 。
Sound barrier engineering is the effective measure to control the impact of railway noise,and acoustics design is the main ways and means to assure the effect of barrier.By acoustics design practice of Zheng Tie Yi Zhong sound barrier engineering,this paper gives the main contents and resolved method that must be considered in acoustics design.The barrier's average insertion loss(equivalent continuous A weighted sound level of 24 hours)of the main evaluate points is 10 4 dB,exceeds the scheduled target value 2 4 dB.The effect is very notable.
出处
《铁道劳动安全卫生与环保》
2002年第5期199-201,共3页
Railway Occupational Safety Health & Environmental Protection
