为解决高速铁路运行时产生的噪声问题.减少对车内乘客及设备产生的不利影响,结合中国高速铁路运输实际,以哈大高铁为例,通过噪声衰减系数的修正,对北陆高速铁路噪声预测算法进行了改进,并分析了哈大高速铁路噪声的组成;结合噪声衰减原理,对哈大高速铁路的噪声声压级进行预测,得出最终衰减的噪声声量级67.44 dB;通过声屏障控制措施的实施,有效降低噪声对环境的影响.结果表明,基于改进的北路算法研究,对中国高速铁路的噪声预测、控制及环境的保护具有一定的参考价值. In order to solve the noise problem caused by the operation of high-speed railway and reduce the adverse impact on the passengers and equipment in the vehicle, combined with the actuality of China’s high-speed railway transportation, take Harbin-Dalian High Speed ​​Rail as an example, through the amendment of noise attenuation coefficient, The prediction algorithm is improved and the composition of the noise of Harbin-Dalian high-speed railway is analyzed. Based on the principle of noise attenuation, the noise sound pressure level of Harbin-Dalian high-speed railway is predicted, and the final attenuated noise level is 67.44 dB. The results show that the study based on the improved North Road algorithm has some reference value for the noise prediction, control and environmental protection of China high-speed railway.