地质界线图层的自动化生成方法
发布时间：2018-11-13 12:53
【摘要】：地质界线要素是地质图空间数据库的基本要素之一。地质界线图层通常是地质图空间数据库中图元最多的一个图层,其数字化和质量检验工作较为繁重。针对已有地质体面图层,而地质界线图层缺失的情况,本文提供一种快速补充地质界线图层的方法。该方法也可对原生地质界线图层进行属性数据的自动化质量检验。其主要处理环节包括:首先,基于地质体面图层,构建地质体邻接关系图,可实现对地质界线高效、准确地提取;其次,基于产状数据与断层数据,运用地层接触关系识别规则,可分别实现对基本地层接触关系和断层接触关系的自动识别;最后,针对两邻接地质体面实体多段界线间的接触关系识别结果不一致的情形,运用"平行不整合优先"原则和"长度优先"原则,进行了合理的综合判别。基于1:50 000庐山幅地质界线图层的自动化生成实验表明,本文方法可高效、快捷、准确地生成地质界线图层,既能够满足自动化补充地质界线图层的需要,又可作为检验地质界线图层属性的有效工具。
[Abstract]:Geological boundary factor is one of the basic elements of geological map spatial database. The geological boundary layer is usually a layer with the most elements in the geological map spatial database, and its digitization and quality inspection work is more arduous. In view of the absence of geological boundary map layer, a method to quickly supplement geological boundary map layer is provided in this paper. This method can also be used to automatically check the quality of the attribute data of the primary geological boundary layer. The main processing steps are as follows: firstly, based on the geological decent layer, the adjacent relation map of geological body can be constructed, which can efficiently and accurately extract the geological boundary; Secondly, based on the occurrence data and fault data, the recognition rules of stratum contact relation can be used to realize the automatic recognition of the basic formation contact relationship and fault contact relationship respectively. Finally, in view of the inconsistent identification results of the contact relationship between the two adjacent geological decent entities, the principles of "parallel unconformity first" and "length first" are used to make a reasonable comprehensive judgment. Based on the automatic generation experiment of the geological boundary layer of the 1:50 Lushan block, it is shown that the method in this paper can generate the geological boundary layer efficiently, quickly and accurately, which can meet the needs of the automatic supplement of the geological boundary map layer. It can also be used as an effective tool for checking the attributes of geological boundary layers.
【作者单位】： 南京师范大学地理科学学院;南京师范大学虚拟地理环境教育部重点实验室;江苏省地理信息资源开发与利用协同创新中心;江苏省地理环境演化国家重点实验室培育建设点;
【基金】：国家自然科学基金项目(41371374、41471175) 国家“863”重大项目子课题(2008AA121604) 江苏高校优势学科建设工程资助项目(PAPD)
【分类号】：P628.4
，
本文编号：2329162
[Abstract]:Geological boundary factor is one of the basic elements of geological map spatial database. The geological boundary layer is usually a layer with the most elements in the geological map spatial database, and its digitization and quality inspection work is more arduous. In view of the absence of geological boundary map layer, a method to quickly supplement geological boundary map layer is provided in this paper. This method can also be used to automatically check the quality of the attribute data of the primary geological boundary layer. The main processing steps are as follows: firstly, based on the geological decent layer, the adjacent relation map of geological body can be constructed, which can efficiently and accurately extract the geological boundary; Secondly, based on the occurrence data and fault data, the recognition rules of stratum contact relation can be used to realize the automatic recognition of the basic formation contact relationship and fault contact relationship respectively. Finally, in view of the inconsistent identification results of the contact relationship between the two adjacent geological decent entities, the principles of "parallel unconformity first" and "length first" are used to make a reasonable comprehensive judgment. Based on the automatic generation experiment of the geological boundary layer of the 1:50 Lushan block, it is shown that the method in this paper can generate the geological boundary layer efficiently, quickly and accurately, which can meet the needs of the automatic supplement of the geological boundary map layer. It can also be used as an effective tool for checking the attributes of geological boundary layers.
【作者单位】： 南京师范大学地理科学学院;南京师范大学虚拟地理环境教育部重点实验室;江苏省地理信息资源开发与利用协同创新中心;江苏省地理环境演化国家重点实验室培育建设点;
【基金】：国家自然科学基金项目(41371374、41471175) 国家“863”重大项目子课题(2008AA121604) 江苏高校优势学科建设工程资助项目(PAPD)
【分类号】：P628.4
，
本文编号：2329162
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