CAJ | 학술논문

基岩面高程等值线图是建立三维地质模型所需的一项重要数据，也是三维地质调查工作的一项重要任务。制作基岩面高程等值线的主要数据源为钻孔和地形等高线。在制作过程中，首先对钻孔数据进行筛选和标准化处理，筛选出347个钻孔投影成MapGIS的点文件（.WT），为提高精度，使成图更符合实际情况，结合武汉市地形特征，提取地表基岩露头出露部分等高线（.WL）代表露头区基岩面高程。再利用MapGIS DTM分析数字高程模型对钻孔和等高线对应的点文件和线文件（.WT和.WL ）剖分插值网格化，生成平面和立体的基岩面等值线图。通过对MapGIS提供的4种剖分插值结果进行对比分析，应用Kring泛克里格网格化模型绘制的基岩面高程等值线图更符合实际情况，同时也更快速、方便。需要注意的是，在使用Kring泛克里格网格化方法时，应对数据进行正态分布检验。
기암면고정등치선도시건립삼유지질모형소수적일항중요수거，야시삼유지질조사공작적일항중요임무。제작기암면고정등치선적주요수거원위찬공화지형등고선。재제작과정중，수선대찬공수거진행사선화표준화처리，사선출347개찬공투영성MapGIS적점문건（.WT），위제고정도，사성도경부합실제정황，결합무한시지형특정，제취지표기암로두출로부분등고선（.WL）대표로두구기암면고정。재이용MapGIS DTM분석수자고정모형대찬공화등고선대응적점문건화선문건（.WT화.WL ）부분삽치망격화，생성평면화입체적기암면등치선도。통과대MapGIS제공적4충부분삽치결과진행대비분석，응용Kring범극리격망격화모형회제적기암면고정등치선도경부합실제정황，동시야경쾌속、방편。수요주의적시，재사용Kring범극리격망격화방법시，응대수거진행정태분포검험。
Bedrock surface contour map is one of the most important dates for 3D geological model ,and a important duties for 3D geo-logical survey also .Drawing bedrock surface contour map bases on boreholes and contour .Firstly, screen the useful boreholes and made them normalization .347 boreholes were screened to map in point file ( .WT)by projection transformation . For a more accurate and more reasonable map , selects the contour of the outcrop to join in the drawing , which represents bedrock surface contour there . And then, using DTM module of MapGIS, grids the discrete date and draws the contour map and 3D contour map.With comparison and analysis of 4 models in MapGIS , Kring model is the best one .It is worth noting;however , that normal distribution test of the date is necessary before griding in Kring model .