Engineering Geological Modeling And Visualization Based On Drill Data

First,a review of the relevant three-dimensional geological modeling Theory and Techniques,including geological model space data structure,spatial interpolation fitting method to construct three-dimensional geological model method.Urban engineering geology analysis combined with practical applications,3D Strata Model Construction area.Based on drilling and other related information can reveal the formation cut-off point and formation of body structure data of spatial interpolation of discrete data to establish upper and lower strata of each DEM(Digital Elevation Model)interface model to model as the basis for building multi-DEM of the study area 3D strata model.In the three-dimensional geological model based on the design and analysis applications based on three-dimensional geological model,on the one hand we should support the geological model and query and editing of geological raw materials;On the other hand need to interoperate and geological model of three-dimensional scene analysis features such as rotate,zoom,pan,set transparency,a grid mesh network settings,etc.the geological model and cutting capabilities,enhanced visual effects and practicability of the model.This thesis contains three parts:1.Adoption of three-dimensional geological model of the study and summarize the data,drilling data for the characteristics of the data,combined with object-oriented design,data structure design to complete drilling,formation and geological objects.Using SQL Server relational database to establish large-scale study of geological data management database for storage and management of drilling geological information.2.The use of the space interpolation algorithm and discrete data triangle subdivisionmethod,establish TIN triangulation simulated formation interface,multi-layer DEM modeling method is adopted to establish the mathematical model and 3D strata in the study area using OpenGL to realize visualization,finally,based on visual model research subdivision principle and implementation method of the model.3.Design and development based on geological modeling and visualization platform engineering geology drilling system with Visual Studio 2010 and C ++ are used as development tools and languages,with Microsoft's MFC framework and OpenGL graphics library as an open source system and the window procedure framework complete modeling visualization technology,the system mainly for query borehole data,editing functions,drilling,surface,three-dimensional geological model creation and visualization,multi-perspective view of the model scene observation and control as well as space for a geological model cutting function.