摘要
为了对矿区地表移动与变形的空间分布规律进行预计与"再现",文章提出了数字沉陷模型DSM的概念,分析了其与DTM和DEM的区别与联系,讨论了DSM的构建方法。在此基础上提出了矿区DEM反演的概念,讨论了反演分析原理及其实现方法。然后结合研究区实际例子进行了DSM计算和静态下沉等值曲线表达,最后采用动态移动过程模拟和时空反演模拟方法,根据常村矿矿井南部2002年的DEM构建了该区域2000,1997年的DEM。利用上述方法生成的DEM数据层可以与矿区对应时刻的生态数据图层一起进行GIS空间叠置运算,为分析矿区生态环境采动变化趋势提供数据方法。
In order to forecast or recover the spatial distribution of the surface movement and deformation in mine areas,the author put forward the concept of DSM（Digital Subsidence Model）.The difference and relation between DTM（Digital Terrain Model）and DEM（digital elevation model）is presented in the paper.The construction method of DSM is discussed in detail.The idea of DEM inversion is then advanced,and the principle and implementation is also discussed.The case of DSM calculating and subsidence basin expressing is given.The DEM of the south districts in Changcun coal mine in 2000 year and 1997 year is rebuilt according to 2002 year by the space-time simulation and inversion method.The above-generated DEM and corresponding eco-environment data layers can be used into the overlay operation of GIS space,this provides a numerical approach for the analysis of mining-induced trend of eco-environment in the mine area.
出处
《矿业研究与开发》
CAS
北大核心
2010年第1期25-28,32,共5页
Mining Research and Development
基金
国家自然科学基金资助项目(50774080)
国家公益性行业专项基金(200809128)
关键词
矿区开采
地表下沉
DSM
DEM反演
Mining
Surface subsidence
Digital subsidence model
Space-time inversion of DEM
