Research On Monitoring And Prediction Of Deformation On Airport Runway

Airport is an important part of public transportation in China,and its runway is particularly sensitive to land subsidence,especially uneven subsidence.In order to ensure the safe operation of the airport,it is necessary to monitor the deformation in the airport which may affected by land subsidence.Taking Beijing Daxing International Airport as an example,this paper collates the relevant geological data,considering both the geological environment conditions and the management characteristics,chooses Beidou and InSAR combined method for the deformation monitoring of the airport.Based on the full investigation of relevant standards in the flight area,the Beidou deformation monitoring scheme is well designed and implemented in detail.In terms of monitoring data processing,this paper proposes a method of interpolation of spatial continuous InSAR Data in time by using time continuous Beidou data to get "spatiotemporal continuity" of monitoring data.In the prediction and early warning of deformation,a practical creep algorithm is used to extrapolate reasonably on the basis of the processed data to predict the deformation in the future;at the same time,on account of InSAR and Beidou monitoring data,a finite element back analysis method based on the UH model considering time effect is used to supplement the analysis and prediction of local deformation.Combined with the relevant requirements for airport runway deformation in the specification,early warning conditions are set to facilitate early detection of problems and take corresponding engineering prevention measures.The design scheme,data processing and prediction method in this paper are universal for the monitoring and early warning of any airport runway deformation,and provide guarantee for airport operation safety.