期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2009
卷号：19
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：Monitoring of long-term displacements and deformations of engineering objects is one of the main problems of engineering surveying. However,objects of a slender shape are additionally exposed to fast-variable movements,caused by atmospheric,seismic and operation factors. Particularly susceptible to vibration are chimneys,masts and towers,and also spans and pylons of bridges,especially of suspension bridges. The specificity of vibration measurement is to ensure the appropriate frequency of recording data. Hence,classical surveying techniques used to measure slow movements are not applied to vibration measurement. In addition,the kinematics tests should be performed with a high accuracy and should enable obtaining the whole object deformation image. The development of new technologies makes it possible to better investigate engineering structures dynamics. It is the ground-based interferometric radar,an innovative device,operating on the basis of the stepped-frequency continuous wave modulation technique and the microwave interferometry that has a great potential as regards that investigation. The measurement accuracy of relative movements with the use of the radar amounts to unprecedented values. Moreover,high frequency of recording and a large range of measurement allow classifying this device among the best vibration monitoring tools. The article presents results of the first vibration measurements made in Poland using the IBIS ground-based interferometric radar,owned by the Faculty of Mining Surveying and Environmental Engineering of AGH University of Science and Technology. The effectiveness of the discussed technology in vibration monitoring is confirmed by the obtained results. Tests were performed on several bridge and tower structures.
其他摘要：Monitoring długotrwałych przemieszczeń i odkształceń obiektów inżynierskich jest jednym z podstawowych zagadnień geodezji inżynieryjnej. Jednakże obiekty o wydłużonym kształcie są dodatkowo narażone na występowanie ruchów szybkozmiennych,powodowanych czyn
关键词：radar interferometry;vibration monitoring;construction vibration;towers;chimneys; bridges and viaducts
其他关键词：interferometria radarowa;monitoring drgań;wibracje konstrukcji;wieże; kominy;mosty i wiadukty
