Study And Development Of Mining Subsidence Data Processing Software Based On GPS

This paper is written on the engineering background of the surface movement observation station's building and data processing and analyzing of first coal mining face in Liuzhang Mine. This paper creatively applies GPS technology in deformation monitoring and points out the GPS monitoring scheme based on the analysis of monitoring technology in the world. The author gives the main math models and stresses the function of 'datum' in deformation analysis based on the systematically research of data processing method.The author researches on the law of surface movement and deformation and evaluates the predicting parameters by probability integral method based on the analysis of the observed data processing .It may be divergent for the iteration algorithm when evaluating parameters using least square method because of the inevitable gross error or abnormal values in observed data. For the abnormal values or gross error is inevitable during the observation, the emanative result of parameter often comes forth by least square method. For that, the author sets up a robust estimation model for evaluating parameter of probability-integral method using the modern data processing theory, which makes sure that the parameters obtained are reliable.This paper synthetically analyzes the effects of the geological and mining conditions which include unconsolidated layers and faults on surface movement and deformation according to observed data in various periods, and discloses deformation regularity of surface migrating caused by mining gently inclined seam under the geological and mining conditions of this mine.Research on the law of surface movement and deformation in mining subsidence mainly are as followed:(1)Features of surface moving basin after stability(2)Features of surface movement and deformation during mining(3)Effects of surface movement and deformation on buildings It is significant to predict the surface subsidence and make plans for house removal.The author compiles the data processing software of mining subsidence which includes the module of design of ground surface movement observation, the module of data processing, the module of parameters evaluating and so on based on VB.NET, AutoCAD and MapObjects. This software achieves the integration of design and data processing.