以石家庄市地铁1号线运行对与其直线距离约50 m的河北省博物馆产生振动影响为背景,按照强震动台站相关规范要求进行现场观测,获取2021年8月4日0—24时完整观测数据,分析发现:EW向最大加速度峰值为10.57 Gal,出现在08:07;NS向最大加速度峰值为6.50 Gal,出现在20:58;UD向最大加速度峰值为7.80 Gal,出现在07:28。参照相关振动标准值,结合《中国地震烈度表》(GB/T 17742—2020),得出该地铁线路运行期间对河北省博物馆的振动影响烈度为Ⅱ度(2度)—Ⅲ度(3度),非运行期间振动现状值均低于振动标准值,无影响烈度。研究结果可为河北省博物馆文物的长期保护提供重要参考。
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.
2024,45(2): 84-89 收稿日期:2023-01-30
DOI:10.3969/j.issn.1003-3246.2024.02.011
作者简介:徐强(1991—),男,硕士,工程师,主要从事地震灾害防御研究等工作。E-mail:xuqiang267@163.com
*通讯作者:吕国军(1985—),男,本科,高级工程师,主要从事地震灾害防御研究等工作。E-mail:276877415@qq.com
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