Calculation Of Ground Movement Parameters And Prediction Of Movement And Deformation Under The Thick Loose Layer

The Prediction of mining subsidence is one of the core content of mining subsidence,while the ground movement parameters is the basis for prediction of mining subsidence,so its value determines the prediction accuracy of surface movement and deformation.The paper Calculates ground movement parameters with pattern search at the same time, In view of the thick loose layer of this special geological and mining conditions, the paper correctes the original model of Probability Integral and uses probability integral method of corrected model for ground movement and deformation prediction.On the basis of comprehensive analysis in a variety of calculating method for the ground movement parameters,the paper uses Pattern Search to calculate ground movement parameters in order to improve the existing defect.Pattern search solves the problem of using any mining shape data to calculate the ground movement parameters. According to the analysis on calculating parameters’ effect in ground movement observation station shows that the ground movement parameters with Pattern search is accurate and reliable in the case of the initial parameters.what’s more,it realizes the computer program, so improves the calculation speed and efficiency.The probability integral method is very common method in mining subsidence prediction in our country,but it is mostly applicable to the general geological and mining conditions. As a detailed study of thick loose layer under ground movement and deformation and parameter characteristics, as well as principles of probability integration method,the probability integral model is corrected and the Probability Integral Method corrected model is established under the thick loose layer.The corrected model is expected in good agreement with the measured values after verification.lt implements movement and deformation prediction and maximum prediction in the main profile of ground subsidence basin and the movement and deformation prediction at any point.The expected results are saved in the form of a word, txt document and two-dimensional visual graphics with AntoCAD.By using ActiveX automation interface of VB6.0finishes the Matlab call and implements the three-dimensiona of the sink basin and horizontal movement in mining area. In the above of the theories and methods, this paper depends on Visual Basic6.0as development platform and combines with AutoCAD prepared" Calculation of ground movement parameters and prediction of movement and deformation" software.