摘要
GB-InSAR(ground-based interferometric synthetic aperture radar)技术由于其灵活性、分辨率高、观测周期短等优点,已广泛应用于滑坡、露天煤矿、大坝、建筑物的形变监测中。采用GB-InSAR技术应用于振动测量中,设计试验对某高速路的高架桥桥梁进行振动测量探索试验,探索其在短周期内的振动情况。试验结果得出,GB-InSAR技术可以探测到桥梁存在0.1~3.6 mm的振幅,1.0~4.0 Hz的振动频率。目前该技术在桥梁振动测量领域的应用还在进一步探索中,有望今后能克服传统振动测量的复杂操作,拓宽振动测量的技术手段。
GB-InSAR technology has been widely used in deformation monitoring of landslides,open-pit mines,dams and building due to its flexibility,high resolution and short observation period.In this paper,the GB-InSAR technology is applied to measure vibration.An experiment is designed to explore the vibration measurement of an elevated bridge of highway,and its vibration in a short period.The experimental results show that GB-InSAR technology can detect the vibration frequency of bridge with 0.1-3.6 mm amplitude and 1.0-4.0 Hz vibration frequency.At present,the application of this technology in the field of bridge vibration measurement is still under further exploration,and it is hopeful to overcome the complex operation of traditional vibration measurement and expand its application in the future.
作者
何亚东
左虎
吴林冲
HE Yadong;ZUO Hu;WU Linchong(The Third Geodetic Team of the Ministry of Natural Resources,Chengdu 610100,China;Chengdu Institute of Survey&Investigation,Chengdu 610081,China)
出处
《测绘地理信息》
CSCD
2021年第2期71-74,共4页
Journal of Geomatics
基金
地基InSAR应急监测能力建设资金(2020KJ01)。
