通过声屏障原型试验和声屏障模型试验结果对比分析,得出倒L型声屏障对低频声降噪效果不明显,对中、高频声有较好的降噪效果。在160Hz-4 000Hz的频带范围内,声屏障原型试验和声屏障模型试验有较好的相关性,证明缩尺模型试验是开展降噪声屏障研究的有效方法,对今后开展降噪声屏障的设计和研究具有参考价值。 By comparison of sound barrier prototype test and acoustic barrier model test results, it is concluded that inverted L-shaped sound barrier has no obvious effect on low frequency noise reduction and good noise reduction effect on middle and high frequency sound. In the range of 160Hz-4 000Hz, the acoustic barrier prototype test has good correlation with the acoustic barrier model test. It proves that the scale model test is an effective method to study the noise barrier. In the future, the noise barrier Design and research have reference value.