Monitoring And Regularity Analysis Of Surface Movement And Deformation Of Mining Subsidenc

Coal resource is the basic energy and important raw material of our national economy and social development.In recent years,due to the high intensity exploitation of coal resources,the ground surface subsidence and environmental problems are emerging,in order to satisfy the needs of mine safe to carry out the"three under" mining work,restoration and reconstruction of the mining area ecological environment,which seems prime important that continuous monitoring of the mining subsidence of the surface movement.Compared to the traditional surface monitoring methods,the working cycle is long,the labor intensity is large and the coverage area is limited,which cannot meet the requirements of the mining area.Along with our country combination with the third generation of "beidou" satellite and positioning system of the network,the accuracy of GNSS technology is improved,the related automatic monitoring equipment,CORS-RTK technology in mine surveying application also got the promotion.Due to the influence of the geographical environment of the mining area,the law of surface movement subsidence is also more complicated.At the same time,the GNSS technology is limited by the elevation accuracy.In this paper,therefore,Zhuji east mine 1222(1)working face surface movement deformation regularity and to explore the CORS for the application of GPS-RTK technology in mine surveying precision and RTK elevation,the elevation difference instead of fourth level measurement.The work and results of this paper are as follows:Through Zhuji east mine 1222(1)working face in data collection,technical design,choosing buried stone,field data collection,data analysis,etc,combining the theory of mining subsidence and mining subsidence integrated data processing and analysis software MISPAS,HGO and field data processing and analysis,to calculate the surface movement deformation,map the surface movement deformation,drawing the map of surface movement and deformation and analyzing the law of surface movement and deformation,etc.By 1222(1)working face near the village of monitoring,monitoring points based on the relevant theory of "three under" mining and requirements,the village of three-dimensional deformation display system software referred to as "3DMS software" village movement deformation of visual display,and analysis of the law of village deformation.Through the vertical system of learning,learning study of elevation transformation model,established the quadric surface model,polyhedral function model,BP neural network model,The reliability of elevation conversion model is verified by using the static data training of 1222(1)working face.On this basis,the CORS-RTK data collected by the foreign industry carries out the elevation transformation,and compares the elevation and height difference of the conversion elevation,the height difference and the fourth level,and the comparison between the elevation and the height difference.The feasibility of using RTK elevation to replace the four level measurement in mining is explored.