Application of 3D laser scanning technology in evenness analysis of high-speed railway tunnel

doi:10.13474/j.cnki.11-2246.2021.0295

Abstract

Abstract: High-quality tunnel lining evenness not only has a vital impact on the second lining waterproof construction,but also guarantees the tunnel's linearity, uniform structural force, and lasting and effective waterproofing system during operation.The 3D laser scanning system is a comprehensive measurement technology that integrates optical, mechanical, electrical and information technology widely used in tunnel engineering in modern times. It provides a new and implementable method for the evenness analysis of the tunnel surface thanking to its rapid on-site massive point cloud collection and analysis capabilities. This paper focuses on the practice of combining high-density 3D laser scanning point clouds with 3D tunnel design and computer algorithms in Deqing tunnel, which realizes high-precision,exhaustive and visual evenness analysis.

Key words: high-speed railway, tunnel, primary support, water proof, 3D laser scan, flatness

CLC Number:

TANG Dongyue, XIAO Shu'an, ZHOU Xinghua, ZHU Shuipeng. Application of 3D laser scanning technology in evenness analysis of high-speed railway tunnel[J]. Bulletin of Surveying and Mapping, 2021, 0(9): 160-164.

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Application of 3D laser scanning technology in evenness analysis of high-speed railway tunnel

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