Research Of Open Pit Mine Slope Monitoring Based On D-InSAR

The stability of the slope, is related to the safety of the open mine.In order toensure mine safety production,need for long-term displacement monitoring of openpit slope.Differential interferometry synthetic aperture radar technology is developedin the1990s remote sensing technology,it has the Monitoring the surfacedisplacement ability of all day,Wide coverage,high precision,It has become one of thepotential of earth observation technology.This paper respectively by the methods oftwo-pass and three-pass to deal with data mining at the same time,to compare theresults,founding two-pass is more suitable for processing low coherence of minedata.Combined the technology of permanent scatterer mining area of monitoringresults,differential interferometry synthetic aperture radar technology centimeters ormillimeters level of accuracy.Using baisha reservoir dam in mine data simulationdisplacement of the slope,proving that differential synthetic aperture radarinterferometry technique can be applied to the slope displacement monitoring.In thispaper, the research content and results are as follows:1.This paper reviewed a large number of literature books of domestic and foreignExpert,the conclusions and experiences are summarized and analyzed,summed upsome of their insights,People who believe in interferometry for future research hascertain benefits.2.This paper introduces the radar imaging modes,the image-forming principle ofInSAR and D-InSAR,emphatically analyses the two-pass and three-pass differenceinterference process,and analyzes the factors that causes the image of coherent,anddiscussed the corresponding solution.3.This paper adopt the two-pass and three-pass of image processing and theresults are compared,founding that,due to the mining area image coherence is nothigh,result in unwrapping the of three-pass solution,and the introduction of externalDEM rail two-pass to get the final surface deformation figure.Proving the phasewrapped little impact on two-pass,and the mining area in image coherence,two-passthan three-pass is more suitable.4.Using the mining area of baisha reservoir dam displacement of the slope wassimulated,got good result,indicating D-InSAR technique can be applied to the slopedisplacement monitoring.