与矿山三维地质模型自动关联的剖面图更新方法

A method for updating sectional view automatically associated with mine 3D geological model

露天煤矿开采过程中矿山三维地质模型不断变化,需要随之更新地质剖面图以真实反映当前矿山的地质构造与地层性质。针对目前剖面图更新方法存在剖面图内部图元属性信息与空间信息交互不畅导致剖面图更新不够准确的问题,提出了一种与矿山三维地质模型自动关联的剖面图更新方法。通过设计矿山三维地质模型与剖面图元关联关系的概念模型与逻辑模型,实现模型图元与剖面图元对象名称的关联;通过在剖面图上设置水平和高程位置的定位坐标,将剖切所得对象关联至相应的剖面图位置,实现模型图元与剖面图元空间位置坐标的关联,以达到矿山三维地质模型与剖面图属性信息、空间信息等图元数据关联的目的;根据矿山三维地质模型中发生改变的图元确定需要更新的区域,提取区域内各剖面线并根据关联关系得到相应的剖面图,进一步通过遍历判断图元属性更新标志位和几何更新标志位的状态,自动更新各剖面图中属性或几何形状发生变化的剖面图元。应用结果表明,该方法实现了剖面图与矿山三维地质模型的关联,以及剖面图的自动更新;利用该方法自动更新后的剖面图中定位坐标数据与更新前一致,验证了剖面图更新方法的准确性。

During the process of open-pit coal mining,the 3D geological model of the mine is constantly changing.It is necessary to update the geological sectional view accordingly to truly reflect the current geological structure and stratigraphic properties of the mine.A method for updating sectional view automatically associated with mine 3D geological model is proposed to address the problem of inaccurate sectional view updates caused by poor interaction between internal graphic element attribute information and spatial information in current sectional view updating methods.By designing conceptual and logical models of the relationship between 3D geological models of mines and sectional view elements,the association between model elements and sectional view element object names can be achieved.By setting the positioning coordinates of horizontal and elevation positions on the sectional view,the objects obtained from the section are associated with the corresponding sectional view positions,achieving the association between the spatial position coordinates of the model elements and the sectional view elements.The purpose of associating the 3D geological model of the mine with the attribute information,spatial information,and other graphic data of the sectional view is achieved.The method determines the area that needs to be updated based on the changed graphic elements in the 3D geological model of the mine.The method extracts various section lines within the area,and obtain corresponding sectional views based on their correlation relationships.Further,by traversing and judging the status of the graphic element attribute update flag and geometric update flag,the method automatically updates the sectional view elements with changed attributes or geometric shapes in each sectional view.The application results show that this method achieves the correlation between sectional views and 3D geological models of mines,as well as automatic updating of sectional views.The accuracy of the sectional view update is verified by using this method to automatically update the positioning coordinate data in the sectional view,which is consistent with the pre update data.