High-mining-degree mine smooth blasting mining method

Abstract

The invention provides a high-mining-degree mine smooth blasting mining method. The high-mining-degree mine smooth blasting mining method comprises the steps of determining light explosion parameters,and digging blastholes in the contour line of the designed blasting shape on the surface of a mine to be detonated; forming a blasting hole network through the blastholes, and detecting the hole depths, diameters and angles of the blastholes after completion of drilling of the blastholes; installing electronic detonators on the blastholes, and setting the detonating time of the electronic detonators; and conducting detonating along the blasting hole network from bottom to top. According to the high-mining-degree mine smooth blasting mining method, the detonation electronic controlled electronic detonators are adopted and combined with smooth blasting for mine blasting mining. The delay time of the electronic detonators is set for different types of blastholes to guarantee the blasting effect, blasting vibration of a mine slope is accurately controlled, the situation that overcrushing of the upper layer of the mine affects bench blasting operation of the lower layer of the mine is avoided, the boulder yield of an upper blasting opening is reduced, and the maximized utilization rate of mine resources is increased.

Description

technical field [0001] The invention relates to the technical field of mine blasting engineering, in particular to a smooth blasting mining method in high-acquisition mines. Background technique [0002] Compared with underground mining, open-pit mining has the advantages of making full use of resources and low dilution rate. It is a mining method that has the advantages of fast mine construction and large output. [0003] In the process of open-pit mining, large-scale slope forming operations are required. Generally, pre-splitting blasting or smooth blasting is used to ensure the safety, stability, beauty and subsequent greening of the slope; in the existing blasting, the charging of deep hole blasting is difficult. High efficiency, difficult to locate, difficult to ensure the energy-gathering direction of explosives; the traditional explosive string is easy to collide with the blast hole, the shell of the explosive string is damaged or the guide wire is broken; the large b...

AI Technical Summary

Problems solved by technology

[0003] In the process of open-pit mining, large-scale slope forming operations are required. Generally, pre-splitting blasting or smooth blasting is used to ensure the safety, stability, beauty and subsequent greening of the slope; in the existing blasting, the charging of deep hole blasting is difficult. High efficiency, difficult to locate, difficult to ensure the energy-gathering direction of explosives; the traditional explosive string is easy to collide with the blast hole, the shell of the explosive string is damaged or the guide wire is broken; the large block rate in blasting is high, the crushing efficiency is low, and the cost of ore mining is increased. It is the problem to be solved by ore blasting