结合遥感影像的矿山开采沉陷专题信息三维表达

煤矿井下开采引发地表沉陷是一种严重影响生命财产和生产安全的工程形变灾害 ，其形变信息有效表达和精准制图可大大减少矿区变形控制的成本，为矿山安全生产、 保护煤柱留设、塌陷地治理、压煤村庄搬迁、破坏等级判定与损害补偿评估等方面提供 更可靠的技术保障。基于矿山地图、实时卫星遥感影像与开采沉陷变形预计结果等数据 ，采用GIS空间分析和三维可视化技术，对淮北朔里矿区地表移动与变形的下沉（W）、 水平移动（U）、水平变形（ε）、倾斜（i）和曲率（K）等形变类型进行了三维的专 题信息与应用表达，其专题信息能更加直观有效地表达与准确清晰描述开采沉陷的地理 位置、影响范围、受损害地物类型、形变方向与变形量大小等。

Three-dimensional expressing on thematic information of mining subsidence combined with remote sensing images

Ground-surface subsidence induced by underground mining in coal mine is a serious engineering deformation hazard that impacts on the production, life and property safety, the effective expression and accurate drawing of the deformation information can greatly reduce the cost of mining deformation control, and provide more reliable technical guarantee for safe mining, setting the protective coal pillar, managing subsided land, moving villages in mining area, judging the damage levels, evaluating damage compensation and so on. Based on the data of mine maps, real-time satellite remote sensing images and predicting results of mining subsidence deformation, the 3D thematic information and their applications were expressed on the mining ground-surface movement and deformation of subsidence(W), horizontal movement(U), horizontal deformation(ε), inclining(i) and curvature(K) in Huaibei Shuoli mine area using the GIS spatial analysis and 3D visualization technologies. These thematic information can express more intuitively and effectively, and describe more accurately and clearly the mining subsidence in aspects such as the geographical location, affecting scope, damaged object types, deformation direction, size of deformation and so on.