Earth-Rock Dam Deformation Monitoring Based on Three-Dimensional Laser Scanning Technology

Abstract:

Three-dimensional laser scanning can obtain the complete geometry information of the dam quickly and accurately, and then achieve the overall deformation monitoring, which breaks the traditional limitation of single point monitoring and local monitoring. In this paper, the complete point cloud data of the dam was obtained by three-dimensional laser scanning technology, and the surface model of the earth-rock dam was constructed by three-dimensional spherical projection surface dam construction algorithm. Then the accurate three-dimensional surface model of the earth-rock dam was acquired, and the first phase of the model as reference model,with different periods of point cloud data collected were analyzed with the reference model to obtain information about the dam deformation.

• Periodical: Advanced Materials Research (Volumes 926-930)
• Pages: 1918-1921
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.926-930.1918
• Online since: May 2014
• Authors: Ju Wang, Cheng Cai Zhang*
• Keywords: Deformation Monitoring, Point Cloud Data, Surface Model of Earth-Rock dam, Three-Dimensional Laser Scanning, Triangulated Irregular Network

References

[1] HL Li, DF Huang, XD Chen. China Rural Water and Hydropower. Vol. 2(2006): 89-90. [In Chinese].

[2] Rankovi CV, Grujovi CN, Divac D, et al. Modelling of dam behaviour based on neuro-fuzzy identification [J]. Engineering Structures. Vol. 35(2012): 107-113.

DOI: 10.1016/j.engstruct.2011.11.011

[3] LW Zhang: Research on the Technology of Three-dimensional Surface Reconstruction from Scattered point cloud. (Ph.D., ​​ National University of Defense Technology, China 2009), p.18. [In Chinese].

[4] JJ Wu: Research of Point-based Techniques On Unorganized Point Cloud. ( Ph.D., Huazhong University of Science and Technology, China 2004), p.32. [In Chinese].