A method for monitoring and calculating coal mining surface subsidence based on UAV remote sensing

Abstract

The invention relates to a method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing, comprising the steps of I, planning an unmanned aerial vehicle flight line according to landform, range, position and ground resolution of a research area; II, remotely controlling an unmanned aerial vehicle to fly according to a set flight line, and collecting a remote sensing image; III, laying out a plurality of quantity control points according to the range and geological characteristics of the research area, and measuring these points one by one; IV, using professional remote-sensing image processing software to generate a point cloud, and exporting surface three-dimensional coordinates of the research area; V, according to the ground control measurement results, using a four-parameter surface fitting correction model to the three-dimensional coordinates measured by the unmanned aerial vehicle; VI, comparing the corrected surface elevation with pre-mining tomographic map elevation, and calculating post-mining surface settlement. The method has the advantages that the steps are simple, the design is reasonable; implementation is convenient, calculating precision is high, and the surface settlement due to coal mining can be calculated effectively.

Description

technical field [0001] The invention belongs to the technical field of coal mining surface subsidence monitoring in mining engineering, and in particular relates to a monitoring and calculation method for coal mining surface subsidence in plain areas with sparse vegetation. Background technique [0002] Coal mining surface subsidence is a surface subsidence phenomenon caused by coal mining. It has the characteristics of large affected area and long duration. Associated landslides and collapses and other geological disasters can cause varying degrees of damage to surface transportation, construction, communication and water conservancy facilities, and seriously threaten the ecological environment of mining areas and the safety of people's lives and properties. The monitoring of coal mining ground subsidence in mining areas can provide a basis for the protection, damage assessment and management of land resources and buildings in mining areas, and is also of great significance...

AI Technical Summary

Problems solved by technology

Parameter values ​​such as coal mining surface subsidence are important indicators for evaluating mining damage, but how to use UAV remote sensing technology to calculate coal mining surface subsidence and other surface movement parameters has not yet been reported.

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