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  • 标题:DYNAMIC MODELING OF TUNNEL SURVEY SPATIOTEMPORAL DATA
  • 本地全文:下载
  • 作者:XIAOLONG LI ; JIANSI YANG ; BINGXUAN GUO
  • 期刊名称:Boletim de Ciências Geodésicas
  • 印刷版ISSN:1982-2170
  • 出版年度:2014
  • 卷号:20
  • 期号:2
  • 语种:English
  • 出版社:Universidade Federal do Paraná-UFPR
  • 摘要:Currently, for tunnels, the design centerline and design cross-section with time stamps are used for dynamic three-dimensional (3D) modeling. However, this approach cannot correctly reflect some qualities of tunneling or some special cases, such as landslips. Therefore, a dynamic 3D model of a tunnel based on spatiotemporal data from survey cross-sections is proposed in this paper. This model can not only playback the excavation process but also reflect qualities of a project typically missed. In this paper, a new conceptual model for dynamic 3D modeling of tunneling survey data is introduced. Some specific solutions are proposed using key corresponding technologies for coordinate transformation of cross-sections from linear engineering coordinates to global projection coordinates, data structure of files and database, and dynamic 3D modeling. A 3D tunnel TIN model was proposed using the optimized minimum direction angle algorithm. The last section implements the construction of a survey data collection, acquisition, and dynamic simulation system, which verifies the feasibility and practicality of this modeling method.
  • 关键词:Tunnel;Survey Cross-Section;Dynamic;Three-Dimensional Modeling
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