中文摘要：

描述空间趋势和地质的结构的复杂关系，基于地理信息系统和水力发电的工程地质学信息的可视化的数字建模被介绍。信息的函数视觉质问，空间切，绘画的节，和有水力的结构的联合分析被认识到。地质的模型能与地质的结构的形状数据匹配属性数据，并且为 3D 模型的空间质问和分析组织信息。用在 Laxiwa 水力发电的工程在上的应用 Huanghe 河在上游，方法提供 geoinformation，和溢洪道隧道的 geoinformationalong 轴的 3D 节看法的 a3D 平行节看法和质问结果，并且沿着有地下的结构的第 5 轴分别地。

英文摘要：

To describe the spatial tendency and complex relationship of geological structures, a digital modeling based on geographic information system and the visualization of hydroelectric engineering geology information are presented. The functions of information visual query, spatial cutting, section drawing, and coupled analysis with hydraulic structures are realized. The geologic model can match the attribute data with the shape data of geological structures, and organize the information for spatial query and analysis of the 3D model. With an application in Laxiwa hydroelectric project on the upriver of Huanghe River, the method provides a 3D parallel section view and query results of geoinformation, and 3D section views of geoinformation along axis of spillway tunnel, and along the 5th axis with underground structures, respectively.