中国地质灾害与防治学报2025，Vol.36Issue(3)：57-67,11.DOI:10.16031/j.cnki.issn.1003-8035.202402024
北京宋庄地裂缝场地动力响应特征研究
Study on dynamic response characteristics of ground fissure sites in Songzhuang,Beijing
摘要
Abstract
Ground fissure disasters pose significant threats to the safety of residential areas and urban-rural planning in localized areas of Beijing.To analyze the impact of ground fissure activity on the dynamic response characteristics,patterns,and scope of affected sites,this study focuses on the Songzhuang ground fissure in Tongzhou District,a typical development area.Based on the field investigations,the study captured the development characteristics and influence scope of ground fissures and obtain key parameters such as the predominant frequency of the site through microtremor testing.Three dynamic analysis methods were applied to investigate the dynamic response characteristics and patterns of the ground fissure site.The results show that there is no obvious relationship between the excellence frequency and excellence period of the ground fissure site in Songzhuang,Beijing and the location of the measurement points.The ground fissure site exhibits a pronounced"hanging wall effect",with the Fourier superior frequency,the excellent cycle of the response spectra,and the peak intensity of Arias located in the hanging wall of the ground fissure generally exceeding those on the footwall.Additionally,the amplitude of the ground pulsation test is greater than that of the footwall in the area nearer to the ground fissure.The results of this study can provide valuable references for planning,construction,and seismic fortification of structures in the Songzhuang ground fissure development area.关键词
地裂缝/地脉动/动力响应/放大效应/影响范围Key words
ground fissure/microtremor/dynamic response/amplification effect/extent of impact分类
地质学引用本文复制引用
孟振江,蒋继山,张森,邓亚虹,乔建伟,赵俊彦,李超,孙科,李勇,强菲..北京宋庄地裂缝场地动力响应特征研究[J].中国地质灾害与防治学报,2025,36(3):57-67,11.基金项目
长安大学中央高校基本科研业务费专项资金项目(300102264908) （300102264908）
自然资源部陕西西安地裂缝与地面沉降野外科学观测研究站开放课题基金项目(GKF2024-04) （GKF2024-04）
国家自然科学基金项目(42207202) （42207202）
长江水利委员会长江科学院开放研究项目(CKWV2021873/KY) （CKWV2021873/KY）
深地国家科技重大专项子课题(2024ZD1000405) （2024ZD1000405）
