Open-pit mine demolition effect evaluating method

Abstract

Provided is an open-pit mine demolition effect evaluating method. The method adopts the following steps that an image capture device is installed on a safety platform of a demolition bench; on-site images are captured by the image capture device to obtain actual on-site required parameters, and demolition construction is conducted by a staff member based on an actual distance; the number and the distance of slungshots, the shatter value coefficient of demolition muck pile, the size and the number of massive rocks and the number of blind holes are identified from the images collected by an image identification system as evaluating index values; the number and the distance of the slungshots, the shatter value coefficient of the demolition muck pile, the size and the number of the massive rocks and the number of blind holes are preset as standard index values in a data processing system; the index values collected are compared with the corresponding standard index values by the data processing system; evaluating index values above the standard index values are analyzed, demolition parameters are adjusted, and the next round of a demolition is conducted. The method has the advantages that the method is accurate, open-pit mine demolition effects such as the number of the slungshots, blind shot judgement and demolition muck pile information are evaluated quantitatively, operation is convenient and easy, the method is safe and reliable, and the work amount of an on-site engineer is reduced.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a method for evaluating blasting effects in open-pit mines. Background technique [0002] Blasting mining is a widely used and efficient mining method in open-pit mines. Its principle is to use the explosive action of explosives to break the ore body. Open-pit mine blasting needs to face the complexity of rock mass, the high-speed transient of explosive explosion, and the variability of blasting conditions. challenge. The blasting effect of open-pit mine blasting affects whether the follow-up work such as shoveling, loading, and transportation can be carried out smoothly, and also affects the level of production costs. Pre-split blasting effect, etc. At present, various evaluation factors to evaluate the blasting effect require a variety of measurement, monitoring equipment and a variety of analysis methods, resulting in the isolation of various factors, increasing the workloa...

AI Technical Summary

Problems solved by technology

At present, various evaluation factors to evaluate the blasting effect require a variety of measurement, monitoring equipment and a variety of analysis methods, resulting in the isolation of various factors, increasing the workload of on-site engineers and difficulty in implementation, which is not conducive to the achievement of good blasting effects, and affects the mine. Operational safety and economic benefits. In the previous blasting construction process, tools such as RTK, total station, and steel ruler were used to measure the distance of flying rocks, the size of large pieces, and the looseness of the blast pile on site. Distinguishing blind blastholes and evaluating blasting effects requires a large workload and difficulty in implementation, large errors, low efficiency, and unsafety, which is not conducive to blasting parameter optimization and effect improvement

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