Mining Spatial Change Monitoring And Analysis Based On Multi Source Data

With the vigorous development of mineral resource in China,the serious geological disasters and the environmental pollution occurred in many mining areas.They bring the threat to the healthy development of city economy and people’s lives.Research takes Tangshan coal mine as an example.According to the specific conditions of the study area, multi-source data is used as the basics.It uses the technology of "3S" to realize the monitoring and analysis of the mining area on solid space change.Mining spatial variation include changes of surface and topography. According to the situation of the study area,TM, ALOS, Geoeye images are selected as the multi-scale remote sensing data, DEM is selected as the main elevation data.They formed multisource data with related map and text.It uses a variety of technical means to realize the monitoring and analysis of the mining area.Firstly, the information of seeper,solid wastes,vegetation are exacted by index, threshold, and decision tree classification of data processing.The extraction result has carried on the qualitative and quantitative analysis.The processing results on the different scales of remote sensing data are compared, it can realize the monitoring and analysis of macro, local and detail level.Then the rule of Mining spatial variation is obtained.Secondly,according to the information of features change and related map,DEM of monitoring area is selected.The rule of the geomorphological changes is obtained by comparing the data in the same area of different time.Finally,mining spatial variation is realized by combining the rule of the geomorphological and ground changes.Monitoring and quantitative analysis of mining spatial variation are realized by the processing of multi-source data.The dynamic changes of mining area can be determined intuitively and accurately in a specific range.It can provide scientific basis for comprehensive control in subsidence area.