Research On Mining Slope Deformation Monitoring Data Visualization Based On GB-SAR

Open pit Mining slope deformation monitoring is always the hotpot of mining and surveying research.Nature and human factors are the main reasons to cause Open pit mining slope landslide. Therefore,to guarantee mining working safety and smoothly,it is necessary to monitor effectively and forecast accurately the mining slope deformation situation.Comparing between the widely-used methods of deformation monitoring,Ground-Based synthetic aperture radar(GB-SAR) can be the primary method for its huge advantages such as installing flexible,high accuracy,short data acquirement cycle,large monitoring area.However the differential interference processing and analysis of SAR data is too difficulty and professional to fit everyone.For better taking advantages of the application of GB-SAR deformation monitoring and enhance it practicability,in this research we discuss the GB-SAR data visualization method.The main work as follows:1.Ground-Based SAR fine coregistration method:Compared several kinds of commonly used synthetic aperture radar geometrical registration methods,combined with the SAR technique,and the situation of Shengli field east No.2 open-pit coal mine,Xilinhaote,designed the method of setting;toke polynomial correction method as the main method,then realized the Ground-Based SAR geometry fine registration.2.Transformation methods between Ground-Based SAR data and GIS data:according to storage structures of the deformation data and geographical coordinate data which is processed by geometric precision coregistration, deduced the corresponding relation between the two data;transformed the radar data into vector data and grid data, and built database to store spatial data and attribute;in the form of two-dimensional planar and three-dimensional model for characterizing the Ground-Based SAR data, to show the deformation process of open-pit mine slope as a results of dynamic visualization.3.Ground-based SAR data analysis methods:assessed and analyzed within the the slope deformation conditions at set time interval; calculated the local slope surface velocity and acceleration at the radar line of sight direction, drew the line chart to aid analysis and decision making; Calculated landslide earthwork quantity, provide early warning and forecast for the slope deformation trend.4.The slope deformation monitoring thematic geographic information system development based on Ground-Based SAR data:establish a mining slope deformation monitoring thematics geographic information system based on C# and ArcGIS Engine with five functions,which are real-time monitoring,deformation analysis,warning and forecasting,map tools,data management, to satisfy the need of mining slope deformation monitoring.This system decreases complexity and professional of radar data analysis and operation.It aims to completely show and analyze the whole situation of slope deformation,and is easy used by any unprofessional.