Research on Urban Building Safety Monitoring Techniques Based on InSAR
The safety of urban buildings involves people's lives and property.In recent years,there have been many local collapses of buildings causing serious damage.In order to realize the"pre-disaster preven-tion"safety supervision of modern urban building facilities,a large-scale safety risk assessment method for urban buildings and infrastructure was proposed based on PS-InSAR technology.By combining InSAR prin-ciple,the building PS point clustering was extracted,the deformation information of cluster points was ana-lyzed,the effective deformation was extracted according to building risk related indicators,and risk grade standards were divided according to building types and regional conditions,so as to evaluate the safety risk situation of building facilities in the region.Taking Changchun City as an example,using the COSMO-SkyMed satellite time series data,a large-scale safety risk monitoring experiment was conducted on build-ings in the main urban area,and a field survey was conducted on buildings that were evaluated as grade D and needed to be paid attention to,and it was found that there were obvious hidden dangers.The feasibility and accuracy of the method were confirmed,and it could provide technical supports for regular"physical examination"of large-scale urban building facilities and ensure the safety of urban buildings.
urban building safetyPS-InSAR technologysecurity risk monitoringChangchun City
NETL
NSTL
万方数据
