Analysis of influence of urban subway operation on museum vibration
Based on the vibration effect of the operation of Shijiazhuang Metro Line 1 on the Hebei Provincial Museum,which is about 50 m away from it,on-site observations were made following the relevant specifications of strong vibration stations,and the complete observation data from 0 to 24:00 on August 4,2021,was obtained.The data analysis and processing found that the maximum acceleration peak value in the EW direction was 10.57 Gal,which appeared at 08:07;the maximum acceleration peak value in the NS direction was 6.50 Gal,which appeared at 20:58;the maximum acceleration peak value in the UD direction was 7.80 Gal,which appeared at 07:28.Referring to the relevant vibration standard values,combined with the"China Earthquake Intensity Scale"(GB/T 17742-2020),it is concluded that the impact intensity of Shijiazhuang Metro Line 1 on Hebei Provincial Museum during the operation period is Ⅱ degree(2 degree)-Ⅲ degree(3 degree),the current value of vibration during non-operation period is lower than the standard value of vibration,and there is no impact intensity,which provides an important reference for the long-term protection of museum relics in Hebei Province.
国家科技期刊平台
NSTL
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