基于GIS的西安市工程地质环境评价研究

应用GIS技术研究了影响西安市工程地质评价的关键因素,探讨了:数据源获取的现代技术手段和空间与属性数据的建库技术;利用基础类码和专题类码编码的重编码手段,从各种类型的数据中提取新的有用的信息的过程;系列地图编制及需要注意的若干问题与解决方法。此项研究对西安市工程地质环境进行了综合评价,对备选的六个大区及区位点的可能满意度结果进行了排序,得出了与实际情况较一致的评价结果,为政府职能部门的进一步科学规划提供了重要的参考依据。

A Study on the Evaluation of Engineering Geology Based on the GIS Technology in Xi'an City

GIS technology was applied to study some factors that affect the evaluation of engineering geology in Xi'an city,the technology of obtaining data sources and the method of setting up spatial attribute databases were discussed,the means of using the code of fundamentalfeature and the code of thematic feature to record features were put forward.Several problems needed to be paid attention to in the establishment of serial maps.The study gave engineering geology environment of xi'an city a comprehensiveevaluation and put in order by the result of the degree of likelihood and gratification of the six regions selected.The evaluation results,which can provide important references to the governmental planning,were consistented with the reality situation.