考虑开采沉陷影响的矿区地形图更新方法

Method of updating topographic map in mining area considering subsidence effect

针对矿区地形图更新周期长、成本高的实际问题.利用开采沉陷、地理信息系统等理论,采用在原始地形上叠加开采引起的地表下沉量的方法,提出了一种顾及开采沉陷影响的矿区地形图更新方法.研究结果表明:利用该方法能有效融合矿区原始地形数据和沉陷预计结果,快速实现地形图更新,动态反映开采前后地貌变化趋势,其精度完全能够满足矿区大比例尺数字地形图的要求,可为矿区土地复垦与生态重建提供科学依据.

Aiming at the practical problems in long period and high cost for topographic map updating, this paper proposed a method of updating topographic map in mining area considering mining subsidence effect by using a method of the superposition of the original terrain and surface subsidence value, which is based on the theory of mining subsidence and geographic information. An example indicates that by combining the original terrain and subsidence prediction results, fast implementation of the updating and prediction of topographic map in mining area, can dynamically and vividly reflect the trend of terrain and surface water level change due to mining subsidence. The accuracy can meet the requirements of large scale digital topographic map of mining area. The method provides the scientific foundation for the land reclamation and ecological reconstruction.