APPLICATION OF 3D LASER SCANNING IN UNDERGROUND CULVERT SURVEY
Three-dimensional laser scanning is a newly developed measurement technology in recent years,which has been widely used in various fields.In pipeline exploration,it is difficult to find out the exact location of underground drainage culverts buried deep by conventional measurement methods,and there are security risks in later construction.In order to solve the detection problem of this kind of pipeline,this paper introduces an application example of 3 D laser scanning in the detection of underground drainage culvert,and finds out the spatial position of the drainage culvert buried 9 meters underground.The error of calculation,inspection and measurement is 6.5 cm,which meets the accuracy requirements of underground pipeline detection,achieves the detection purpose,and has certain reference significance.
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