Title
Enhanced NURBS modeling and visualization for large 3D geoengineering applications: An example from the Jinping first-level hydropower engineering project, China
Abstract
Large engineering projects with complex underlying geologic structures require 3D geological integration and analysis. Presented is an example of a large hydroelectric dam, highlighting the need for 3D visualization and modeling as a requirement for the engineering design and construction process. Due to the complex nature of these projects, geological analysis using 3D modeling is commonly necessary. In this paper we present an integrated 3D geological modeling methodology for the analysis of large amounts of exploration data, and subsequent geological interpretation based on the non-uniform rational B-spline (NURBS) technique, the triangulated irregular network (TIN) algorithm and boundary representation. The procedural details and application of the proposed approach are demonstrated with reference to an actual hydropower engineering project. The new approach offered a good scheme to solve the inconsistencies among storage, accuracy and operational speed of the model. A 3D model was developed and validated using testing data from the engineering project. Visual analysis of the 3D model helps engineers to comprehend the complexity of geological structures, and enables arbitrary cutting, rock-mass quality classification, and digital drilling.
Year
DOI
Venue
2006
10.1016/j.cageo.2005.11.007
Computers & Geosciences
Keywords
Field
DocType
geoengineering application,enhanced nurbs modeling,engineering project,engineering design,geological integration,large engineering project,visual analysis,geological analysis,subsequent geological interpretation,geological modeling methodology,geological structure,actual hydropower engineering project,jinping first-level hydropower engineering,boundary representation,triangulated irregular network,visualization,nurbs,3d visualization
Boundary representation,Data mining,Construction engineering,Data processing,Computer science,Visualization,Engineering design process,Test data,Hydroelectricity,3D modeling,Triangulated irregular network
Journal
Volume
Issue
ISSN
32
9
Computers and Geosciences
Citations 
PageRank 
References 
4
0.88
7
Authors
4
Name
Order
Citations
PageRank
Denghua Zhong1263.33
Mingchao Li278.75
Lingguang Song3123.25
Gang Wang451.58