3D Terrain Visualized Modeling Technologies for Bohai Straitcrossing Tunnel

doi:10.3973/j.issn.1672-741X.2016.02.003

Tunnel Construction ›› 2016, Vol. 36 ›› Issue (2): 137-142.DOI: 10.3973/j.issn.1672-741X.2016.02.003

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3D Terrain Visualized Modeling Technologies for Bohai Straitcrossing Tunnel

SONG Kezhi¹, WANG Mengshu², TAN Zhongsheng², HOU Hongchao¹, LIU Guibin¹

(1. College of Civil Engineering, Ludong University, Yantai 264025, Shandong,China; 2. Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China)

Received:2015-10-13 Revised:2015-11-04 Online:2016-02-20 Published:2016-03-02

Abstract

Abstract:

A visualized 3D terrain model of Bohai Straitcrossing tunnel is established, so as to analyze the alignment arrangement of the tunnel and to decide the modeling scope of the tunnel. The ASTER GDEM data are adopted as the resources for Bohai strait terrain; and then they are turned into DED mode. The technologies, OpenFlight data structure, LOD technology and modeling method of Delaunay triangle surface, are analyzed. The structural design and modeling sequence design of 3D terrain modeling system are made. Finally, the 3D terrain with good effect is established and the visualized model of local terrain of the tunnel alignment is established, so as to provide foundation for the planning of Bohai Straitcrossing tunnel.

Key words: Bohai Strait, seacrossing tunnel, 3D terrain, visualized modeling

CLC Number:

U 455

SONG Kezhi, WANG Mengshu, TAN Zhongsheng, HOU Hongchao, LIU Guibin. 3D Terrain Visualized Modeling Technologies for Bohai Straitcrossing Tunnel[J]. Tunnel Construction, 2016, 36(2): 137-142.

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3D Terrain Visualized Modeling Technologies for Bohai Straitcrossing Tunnel

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