Aiming at the problem of excessive noise in high-standard starred hotels along high-speed railway in an integrated transport terminal under construction,the prediction models of noise along the railway and indoor building noise were established by the geometric ray method and statistical energy analysis respectively.The distribution characteristics of noise along the railway and the noise conditions inside the hotel when trains pass through and enter or leave the station at high speed were studied,and the law of the impact of sound barriers on noise along the railway and that of sound insulation of exterior walls(windows)of building and room sizes of hotel on noise inside the hotel was discussed.The study results show that:(1)When a train passes through,the ambient noise along the railway will reach more than 90 dB(A)and the noise inside the hotel will also exceed 50 dB(A).(2)Sound barriers can effectively reduce the noise along the railway by 2～10 dB(A),and at the same time,improving the sound insulation of exterior walls of building and increasing the areas of indoor rooms can effectively reduce indoor noise by 16～18 dB(A).(3)When it is difficult to further effectively reduce the indoor noise of sensitive buildings along the line through railway sound barriers and sound insulation of exterior walls(windows)of buildings,the internal noise can meet the standard requirements by changing the room purpose.The results can provide a reference for noise control of sensitive buildings along high-speed railway.
integrated transport terminalnoise along the railway linesensitive buildingindoor noise
NETL
NSTL
万方数据
