基于Matlab的矿区地表移动与变形计算方法研究

Study on Calculating Method for Surface Movement and Deformation Based on Matlab Mining Area

运用开采沉陷理论、概率积分法、Knothe时间函数和坐标转换理论,基于Matlab编程语言对煤矿采空区地表移动变形值计算方法进行了探讨,主要得到了以下几个方面的成果:采空区上方地表移动与变形计算;预计时刻地表下沉与变形动态值预计;地表下沉等值面图和三维可视化效果图的自动绘制;采空区上方地表任意方向下沉与变形剖面图绘制;地表移动变形分布规律分析。本文的程序运行成果与矿区数字地形图一起作为G IS的输入数据进行矿区地表历史DEM的反演,对生产矿井开采技术可行性分析、地下保护煤柱设计以及矿区生态环境损害评价分析将起到至关重要的作用。

According to related theories of mining subsidence, probability - integral method, Knothe time function and coordinate transformation, calculating methods for surface movement and deformation in ined -out area in coal mine were analyzed based on the programming language of Matlab, and the results in several respects were showed as follows ： the calculation of upper surface movement and distortion in ined - out area ; expected for surface subsidence and deformation values of dynamic time ; isosurfaee graph and three - dimension visualization effect chart drawing; cutaway view drawing for upper surface subsidence and deformation in random directions in ined - out area ; analysis of distribution law of surface movement and deformation. Programming results as well as digital terrain map of mine area were inputted to GIS for history DEM inversion of surface in mining area, which is vital to the feasibility analysis of mining technology as well as protective coal pillar design under buildings and evaluation on eco - environment damage.