Method for extracting and predicting displacement of metal mine blasting pile under support of GIS

Abstract

According to a method, firstly, an open-pit mine blasting digital elevation model is constructed, a blasting center is determined based on the open-pit mine digital elevation model, blasting form change spatial distribution is measured, and finally the blasting displacement condition is predicted based on a generalized regression neural network. According to the method, geology related theories and technical methods are used for solving the problem of mine production. The subjects such as geography, geology and mining engineering are organically fused, a prediction model is established based on point cloud data, accurate prediction of the blasting pile displacement after blasting is achieved, the blasting pile displacement serves as ore body displacement to be superposed on the boundary ofan ore body, and secondary delineation of the ore body is achieved. The research progress in the field is promoted, meanwhile, beneficial guidance and help are provided for production of Jiangxi Dexing copper ore, the depletion loss of mine exploitation is reduced, and the economic benefits of mines are improved.

Description

technical field [0001] The invention relates to the fields of surveying and mapping, geographic information science and mining engineering. Background technique [0002] Blasting is a common method of operation in surface mining. The blasting action can release huge energy in a very short time, and make the accumulation of broken rocks form a blast pile. The shape, looseness and main size of the blast pile are important indicators of the blasting quality of the balance plate. Different blasting intensities will affect the movement of underground rocks in different degrees under different geological conditions or surface morphology conditions, making the spatial distribution of underground ore bodies more complicated. Because the movement of ore bodies underground is invisible and unpredictable, it is very difficult to study the movement of underground rock formations caused by open-pit mining. [0003] In the prior art, it is often necessary to measure the ore body spatial...

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Problems solved by technology

[0008] All in all, the mine surface data and ore body spatial distribution measured by traditional means can no longer meet the requirements of ore body deviation prediction after blasting

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