Method for determining displacement range of tectonic stress type ore rock monitored by three-dimensional laser and GPS (Global Positioning System)

By combining three-dimensional laser and GPS monitoring technology, the problem of traditional GPS monitoring is difficult to apply in mining collapse areas, and the accurate determination of the surface rock formation movement range of tectonic stress metal mines is achieved, the accuracy of rock formation sinking angles is improved, and the safety production in the mining area and the reasonable layout of surface buildings is ensured.

CN119716948AActive Publication Date: 2025-03-28INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
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Patent Information

Application Number
CN202510000997.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-28
Estimated Expiration
2045-01-02

AI Technical Summary

Technical Problem

In tectonic stress-type metal mines, traditional GPS monitoring is difficult to perform in mining collapse areas, resulting in the inability to accurately determine the movement range of surface rock formations, which in turn affects the safety production in the mining area and the layout of surface buildings.

Method used

Using a combination of three-dimensional laser and GPS monitoring, a three-dimensional laser is used in the mining collapse area for non-contact monitoring, and the three-dimensional coordinates of the collapse area are obtained, and combined with the three-dimensional coordinates obtained by GPS monitoring are used. The surface sinking lines and rock formation sinking angles are accurately drawn through Kriging interpolation operation and spline curves.

Benefits of technology

The accurate determination of the movement range of the surface rock formation in the tectonic stress metal mines has been achieved, the accuracy of the rock formation sinking angle is improved, and the safety production in the mining area and the reasonable layout of surface buildings is ensured.

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Abstract

The invention provides a three-dimensional laser and GPS monitoring tectonic stress type ore rock displacement range determination method, which comprises the following steps of: firstly, acquiring horizontal displacement and settlement displacement contour lines obtained by monitoring a mining area; according to the obtained contours of the tectonic stress type metal mine area, in combination with a horizontal deformation threshold value # imgabs0 #, an inclined deformation threshold value # imgabs1 # and a curvature deformation threshold value # imgabs2 # of the surface collapse line, the surface collapse line of the mine area is determined, and the largest surface collapse line is selected as the surface collapse line caused by underground ore body mining of the tectonic stress type metal mine; according to the determined surface collapse line and the boundary of the mined goaf of the mining area, selecting a typical section perpendicular to the goaf to determine the collapse angle of the tectonic stress type metal mine, and delineating the surface collapse range of the future mined ore body of the mining area according to the determined collapse angle. And a basis is provided for delineating the surface rock movement range of the tectonic stress type metal mine.
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