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根据《京沪高速铁路暂行规定》确定的原则推导了声屏障附加长度的理论计算方法,采用菲涅耳数-前川表法估算了不同距离、不同高度声屏障的降噪效果,并通过现场实测结果提出了声屏障设计中应采用的控制范围。
According to the principle of “Interim Provisions of Beijing-Shanghai High-speed Railway”, the theoretical calculation method for the additional length of sound barrier is deduced. The noise reduction effect of sound barrier with different distances and altitudes is estimated by Fresnel number-Qianchuan table method. The results suggest the control range that should be used in sound barrier design.