Application Research On Ecological Restoration Of Abandoned Mines Based On Oblique Photogrammetry

It is inseparable for Economic development and mineral resources.Because of the reasons such as unreasonable mining methods and extensive management models in the past,a large number of abandoned open-pit mines need to be repaired urgently.Improving the ecological environment,restoring the natural landscape and eliminating hidden dangers of geological disasters,optimizing the layout of the space for production,living and ecology,promoting the harmonious coexistence of man and nature,and achieving sustainable ecological,social and economic development is one of the important tasks in the current period.The country and all walks of life are paying more and more attention to the ecological restoration of abandoned open-pit mines.This study is based on oblique photogrammetry technology to obtain regional data of an abandoned mine in Luquan County,Yunnan Province.Construct a three-dimensional model of the mining area and evaluate the accuracy of the results of the three-dimensional model.Finally,the application of oblique photogrammetry results and the three-dimensional model in the ecological restoration of mines is discussed.The analysis and research mainly involve the following three aspects.(1)Explains the oblique photogrammetry technology and modeling method,and compares it with traditional 3ds Max,3D GIS and 3D laser scanning and other modeling techniques,focuses on the 3D modeling related technology based on oblique photogrammetry,and analyzes It has its advantages.(2)Taking the ecological restoration project of an abandoned mine in Luquan County,Yunnan Province as an example,taking the map of a project in the project to control the mining area as the research area,Based on the Context Capture Center software mining area 3D model construction and other aspects are introduced in detail.Evaluate the three-dimensional model of the constructed three-dimensional model,the overall model and the geometric accuracy of the model,and compare and analyze the efficiency,method and result data with the traditional measurement technology.It is verified that the results of tilt photogrammetry and the three-dimensional model can meet the needs of ecological restoration in mines.(3)Combined with project requirements,it was demonstrated that the results of oblique photogrammetry DOM,DSM,and the 3D model of mining area can be easily applied to the drawing of topographical maps,planning and designing of ecological restoration of mines,post-construction,evaluation and monitoring,etc.,combined Skyline software realizes the visual display of the three-dimensional renderings after ecological restoration.