Calculation Of Ground Movement Dynamic Parameters And Analysis Of The Law

The Prediction of mining subsidence is one of the core content of mining subsidence,while the surface movement parameters is the basis for prediction of mining subsidence,so its value determines the prediction accuracy of surface movement and deformation.How to gain surface movement parameters is the key in this paper.This paper realizes automatic processing of measured data using the computer program. Based on the measured data of land surface movement observation station, the paper achieves the following contents depending on Visual Basic language.1. The paper systematically studies the processing flow of the mining subsidence observation data, including data preprocessing, data input, calculation and output of the ground movement deformation.2. The paper realizes automatic calculation of the subsidence, incline deformation, curvature deformation, horizontal movement and horizontal deformation in the VB environment. Program wills pass the computed parameters to the AutoCAD, such as movement deformation, coordinate positions, the relative position of the coal seam and programmable graphic scale. AutoCAD realizes drawing curve graph of ground movement deformation automatically by calling program, according to the coordinate of points, calculated movement deformation and the position of Coordinate System.3. According to the measured data of each phase, the paper calculates and output the dynamic parameters automatically. Through many periods of data, it analyzes the dynamic parameters, and summarizes the law of ground movement deformation in the mining process.4. On the basis of comprehensive analysis in a variety of calculating method for the ground movement parameters, the paper uses Pattern Search to calculate expected parameters of ground movement in order to improve the existing defect and realizes a computer programming which improves the efficiency and accuracy.