Research on Intelligent Identification Technology of Dangerous Rock Masses on High Slope Based on Unmanned Aerial Vehicle Drone Photogrammetry
The Kala Hydropower Project is located in a high mountain canyon,with a large area and a large vol-ume of dangerous rock masses distributed on the left bank slope,which is prone to dangerous rockfall disas-ters,posing a threat to the construction and operation safety of the hydropower project,for which it is urgent to carry out efficient management of dangerous rock mass.Identifying the distribution and specific location of po-tential dangerous rock masses,accurately locating them,and then accurately measuring the morphological pa-rameters of potential dangerous rock masses are the key tasks.Therefore,based on UAV photogrammetry technology,this article proposes a set of methods for quickly identifying dangerous rock masses on high slopes of hydropower projects.This method combines automatic recognition algorithms for structural planes,analyzes slope angle distribution through SAD algorithm,and combines kinematic methods with mass stability analysis to achieve accurate identification of hazardous rock masses.The identification results indicate that the stability of the dangerous rock masses on the left bank of Kala is mainly controlled by the NE trending structural planes,combined with other major structural planes,which control the boundary and scale of the dangerous rock development.Affected by the left bank slope gully,the dangerous rock masses near the gully is relatively developed and has a large volume.This identification technology provides a very valuable basis for the manage-ment of dangerous rock masses.
Kala Hydropower ProjectUnmanned Aerial Vehicle PhotogrammetryDangerous rock massStruc-tural plane recognition
万方数据
维普
