Open-pit-mine muck-pile measuring marking method and used group reference scale

Abstract

The invention discloses an open-pit-mine muck-pile measuring marking method and a used group reference scale. The group reference scale comprises a scale body and a group-reference-scale connecting frame, wherein the scale body is of a stretchable structure formed by an outer caliper, a stretchable scale and an inner caliper, and the outer caliper, the stretchable scale and the inner caliper are sequentially sleeved from outside to inside; a waterproof plug is arranged at the end of the inner caliper, and is connected with the outer caliper through an elastic hanging rope; measuring ropes areput in the inner caliper; the group-reference-scale connecting frame comprises an upper clamping groove, a lower clamping groove and a rotating pair, the upper clamping groove is connected with the lower clamping groove through the rotating pair, and the scale body is clamped in the upper clamping groove or the lower clamping groove during using. The open-pit-mine muck-pile measuring marking method and the used group reference scale meet the unmanned-aerial-vehicle rapid measurement flight requirement, reading is accurate, the group reference scale has a division value from the millimeter level to the meter level, and is convenient, easy and reliable in operation and suitable for different sites and climates. Muck-pile real-time state parameters are provided, lumpiness statistic sampling is wider and more reliable, personal errors are reduced, measuring efficiency is improved, and a more-accurate data reference is provided for open-pit-mine step blasting charge and step blasting effectcontrolling.

Description

technical field [0001] The present invention relates to the technical field of statistical measurement of blasting blockage in step blasting in open-pit mines, in particular to a measurement and marking method for blasting piles in open-pit mines and a set parameter scale adopted, which is suitable for step loosening control blasting in open-pit mines and statistics after blasting of small steps in open-pit mines Data reference for blockage distribution when bursting. Background technique [0002] Many research institutions and scholars at home and abroad have studied the calibration method of explosion reactors and developed various measuring devices. [0003] In open-air step loose blasting and open-air small step pre-splitting blasting, the usual speed measurement scales use artificial proportional balls, self-made rulers with scales, tape measures and tape measures. Shooting methods include oblique photography, specific plane projection, and single-picture photography t...

AI Technical Summary

Problems solved by technology

Using an artificial proportional sphere as a point marker can only estimate the size of a small piece near the reading sphere, and it is impossible to accurately read the size of a large piece if it is blocked by the ore rock below

A ruler with a scale can only be used in relatively flat local areas. When the measurement range is large, it is relatively cumbersome, and it is time-consuming and troublesome to carry and repeat.

The tape measure and tape measure are relatively narrow and thin. Although the measurement length has been improved, it is difficult to take some readings due to bending and occlusion. When the measurement range increases, the millimeter division value and the position of the ruler cannot be seen clearly, and only one line of measurement can be formed. refer to

[0006] The artificial photography method used on the site is difficult to ensure the rationality of the reference objects in the overall photography after the blasting of the steps in the open-pit mine, and some even have no markers

In local photography, there are often inconsistencies in the projection scale of the local ore and rock size in the projection map, and it is even impossible to reasonably obtain a reasonable data reference image for large-scale photography of the vertical measurement plane

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