In accordance with peculiarity of existing prediction model,the renewal on digital terrain map with large scale is actualized in the current digital mapping system with simplified data processing.

• 文中针对现有开采沉陷预计模型的特点,以通用数字化成图系统为操作平台,经过简单的数据处理后,实现了矿区大比例尺数字地形图的预测更新。