郑铁一中声屏障工程声学设计研究  

Acoustics Design of Zheng-Tie-Yi-Zhong Sound Barrier Engineering

作　　者：尹皓[1] 陈哲京[1] 辜小安[1] 张春华[1] 刘宪章[1] 黄蕴亮[2] 况灵芝[2] 杨旭虹[2] 李军辉[2] 陈智[2] 

机构地区：[1]铁道科学研究院环控劳卫所,北京100081 [2]郑州铁路局勘察设计院,河南郑州450052

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

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.

关 键 词：声屏障工程 铁路噪声 声学设计 污染治理 

分 类 号：TB535.2[理学—物理] U270[理学—声学]