Research on the Extraction Method of Safety Retaining Walls in Waste Disposal Sites Based on Point Cloud Data
As one of the safety measures for the dumping site,the safety retaining wall is used to ensure the normal operation of the dumping site and avoid the sliding of vehicles due to the failure of rock dumping vehicles to maintain a safe unloading distance.This article proposes a method for extracting safety retaining walls in waste disposal sites based on unmanned aerial vehicle point cloud data.Using the point cloud data of Qidashan Iron Mine dumping site in Anshan City,Liaoning Province,China as the data source,the slope filtering algorithm is first used to extract the point cloud data of the dumping platform.Then,the alphashape edge extraction algorithm is applied to extract the edge point cloud data on one side of the safety retaining wall.Finally,the safety retaining wall point cloud data is extracted based on height constraints and vector cross product position discrimination.Monitoring of safety barriers is achieved through three-dimensional visualization modeling of safety barriers.
drone point cloudsafety retaining wallslope filtering algorithmalphashape edge extraction algorithm
NETL
NSTL
万方数据
