Research on the Radiation Noise of Airport Underground Station with 300 km/h High-speed Train Passing Through
In order to study the station noise situation when a 300 km/h high-speed train passing through the airport un-derground station,the model of the underground station is established based on the statistical energy analysis(SEA)method,and the radiation noise of the underground station is studied.By carrying out the actual test on the noise of high-speed train,the sound power level spectra of the main noise source areas such as bogies and pantographs are obtained.The actual test re-sults are used as the noise source excitation for high-speed trains passing through the station,and the station noise is calculat-ed with SEA method.The station noise characteristics under the three working conditions of single train crossing,two trains meeting at the central and two trains meeting at the end of the station are analyzed in detail.The numerical analysis results show that the maximum station noise is generated when two trains meet at the end of the station,and the total sound pressure level of the station platform can be up to 80.11 dB,which exceeds the standard regulation of 80 dB.Therefore noise reduc-tion design at the station platform is necessary.Finally,through designing shaft schemes in different positions,the radiation propagation rules of noise in underground station are analyzed.The study has provided a reference for analysis of similar sta-tion noise problem caused by high-speed trains crossing the airport comprehensive transportation hub.
acousticshigh-speed trainsstation noisestatistical energy methodnoise reduction
万方数据
维普
