Water diversion vertical shaft defect detection method based on three-dimensional laser scanning technology

Abstract

The invention belongs to the technical field of water diversion vertical shaft defect detection, and discloses a water diversion vertical shaft defect detection method based on a three-dimensional laser scanning technology. The method comprises the following steps: acquiring original point cloud data of a water diversion vertical shaft through three-dimensional laser scanning and preprocessing theoriginal point cloud data; acquiring complete point cloud data of the water diversion vertical shaft through point cloud registration; extracting a central axis of the water diversion vertical shaftto obtain a section; performing convergence analysis of the water diversion vertical shaft; performing radial deformation analysis of the water diversion vertical shaft; performing slab staggering detection of the water diversion vertical shaft; and performing denudation extraction detection. According to the water diversion vertical shaft defect detection method based on the three-dimensional laser scanning technology provided by the invention, the problem that water diversion vertical shaft defects are difficult to be detected in the prior art is solved, and the defect detection of a vertical shaft section of a water diversion power generation system of a large hydropower station can be realized, so that potential safety hazards of the vertical shaft section of a water diversion tunnel can be timely troubleshot, and a powerful guarantee is provided for the safe operation of the hydropower station.

Description

technical field [0001] The invention relates to the technical field of water diversion shaft defect detection, in particular to a water diversion shaft defect detection method based on three-dimensional laser scanning technology. Background technique [0002] With the continuous development of my country's water conservancy and hydropower industry, more and more large-scale hydropower stations have been built, and the hidden dangers of the quality of diversion channels in the diversion power generation system have gradually emerged. As an important part of the water diversion shaft, its erosion, deformation and other diseases will not only threaten the overall safety and stability of the water diversion channel, but also affect the operation of the entire hydropower diversion power generation system, bringing huge safety hazards and economic losses to the hydropower station . Since the last century, dozens of shaft walls in East China and Northeast China have been deformed ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the problem that it is difficult to detect the defects of the water diversion shaft in the prior art by providing a method for detecting the defects of the water diversion shaft based on the three-dimensional laser scanning technology

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