忻州盆地第四系含水系统三维水文地质结构建模  

Three dimensional hydrogeological structure modeling of aquifer system to Quaternary in the Xinzhou basin

作　　者：李红[1] 韩冬梅[2] 梁杏[3] 杨吉龙[1] 曹国亮[4] 

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国科学院地理科学与资源研究所陆地水循环及地表过程重点试验室,北京100101 [3]中国地质大学(武汉)环境学院,武汉430074 [4]中国地质大学(北京)水资源与环境学院,北京100083

出　　处：《工程勘察》2014年第8期39-48,共10页Geotechnical Investigation & Surveying

摘　　要：盆地水文地质结构三维可视模型可以从不同角度直观地、真实地展现盆地孔隙介质的地层、岩性变化特征,成为孔隙性含水系统结构分析的有效手段。本次研究建立了一套可行的、具有一定示范性的综合方法来实现忻州盆地孔隙介质结构的三维可视化。在充分收集整理忻州盆地基础资料的基础上,利用大量的地形、钻孔资料等数字信息建立系统数据库。通过第四系以来地质演变和沉积规律,即岩相、韵律与旋回等研究,辅助利用盆地地质剖面图及第四系地质沉积史来采集厚度控制点(或称虚拟钻孔),按照一定精度采集盆地已有的钻孔和厚度控制点。以GMS软件为平台构建盆地孔隙介质结构可视化模型,实现从不同角度直观地、真实地展示三维孔隙介质的分布规律。盆地含水系统的三维地层结构和岩性结构模型,宏观上反映了地下水含水介质与相对隔水介质的分布情况,有助于对水文地质问题的深入研究,为盆地地下水数值模拟计算奠定了结构基础。Three dimensional visual model of the basin hydrogeological structure has also become an effective mean for the structural analysis of the pore groundwater system, which can from various angles, visually, shows the basin porous media strata and lithology variation. This study established a viable, with certain exemplary integrated approach to achieve the three-dimensional visual display of the Xinzhou basin of porous media structure. Based on the data collection of a lot of terrain, drilled holes data in digital information technology, we build the system database. With the Quaternary geological evolution and the deposition law, inculding facies, rhythm and cycle, and the geological profile and Quaternary geological sedimentary history, collecting control points （or virtual drilling） in the thickness. With the GMS software as a platform to build the visualization structure model of the basin porous media and show the distribution of three-dimensional porous mediain from various angles, visually and truly. Three-dimensional formation structure and lithologic structure model of aquifer system can reflect the distribution of the groundwater aquifer medium and relatively impermeable media and contribute to understanding the hydrogeological problems and laid the structural basis for the groundwater numerical simulation.

关 键 词：含水系统 水文地质结构 可视化模型 忻州盆地 

分 类 号：P641.2[天文地球—地质矿产勘探]