Application of Coordinate Conversion in the Tunnel through

Abstract:

The transformation between different coordinate systems is a technical issue in the process of surveying and mapping. Guangzhou-Shenzhen-Hong Kong Passenger ZH-4 contract Huanggang tunnel passes Shenzhen and Hong Kong. Its coordinates belong to different coordinate systems. In order to ensure the tunnel through quality, coordinate conversion accuracy perpendicular to the direction of tunnel axis should be main consideration when coordinate transformation. According to the characteristics of the tunnel project, using four-parameter model and the least square method. Through composing different public control point, and comparing the tunnel through the point and the cut-off point the projection length of conversion residuals on the important through direction, the optimal transformation parameters have been selected.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2792-2795
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2792
• Online since: October 2012
• Authors: Xiu Dong Qi, Zhong Yi Wang
• Keywords: Coordinate Transformation, Least Square Algorithm, Tunnel through

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