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Abstract: The Zhangjiajie-Jishou-Huaihua (hereinafter referred to as ZhangJiHuai) highspeed railway project has started its construction since 12th December 2016. The Jishou Tunnel, as an early start section and key control project of the line, first introduced tunnel scan system which has been widely used on the entire project. Tunnel scan system integrates 3D laser scanner and smart computer software,...