| With the rapid development of social economy,the development and utilization of mineral resources has increased.Although it has brought huge economic benefits,longterm uncontrolled and unplanned mining has caused great damage to topography and land.such as ground subsidence,landslides,destruction of cultivated land,etc.causing people's personal safety and property losses.During the mining process,the mine waste occupy large amount of land,causing vegetation damage and river siltation.The state began a planned remediation of damaged land,land reclamation work in the mining area.In order to better complete land reclamation work,accurate measurement of abandoned mine topography and geomorphology becomes more important.Due to the complex topography and unstable geology of the mining area,traditional measurement methods are difficult to apply to the accurate measurement of the mining area,while the UAV is flexible,fast,and has a large amount of information and low cost.In order to make the designer understand the basic situation of the mining area,it is necessary to use 3D modeling of the aerial image of the drone.The main contents of this paper are as follows:1)After analyzing the basic status of mine surveying,study the advantages of drone tilt photogrammetry relative to other survey methods in mine surveying.2)Investigate the drones in the existing market and find drones suitable for mine surveying.The new drone is used in this paper.By comparing with the drones on the market,the advantages of using this drone in abandoned mine surveys are found.3)Analyze the factors affecting the accuracy of tilt photogrammetry and find an optimal measurement parameter setting.4)Using the Smart 3D software to carry out three-dimensional modeling of the mining area,and study the accuracy level that the Phantom 4 RTK UAV can achieve in 3D modeling,and whether its accuracy can meet the accuracy index of the design work in the early stage of land reclamation.Figure 29;Table 8;Reference 51... |
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