| 摘要 |
The present invention relates to a surface blasting method using a multi-channel blast power supply. In particular, the present invention relates to a surface blasting method capable of minimizing noise, vibration, or shattering occurring in a blasting work so that blasting times of a plurality of explosives are adjusted while the explosives are sequentially blasted. According to the surface blasting method using the multi-channel blast power supply of the present invention, since the interval between the blasting times of the explosives inserted into a plurality of blasting holes can be adjusted, and the explosives can sequentially blasted, the noise, the vibration, and the blast pressure occurring in the blasting work can be minimized. In addition, even if only one type of a primer, which is ignited if a predetermined time is elapsed, is used for the explosives, the interval between the blasting times of the explosives can be adjusted. Accordingly, various types of primers are not used, so that the cost of the primer can be reduced, so the work cost resulting from the blasting work can be saved, which makes an economical effect. [Reference numerals] (100) Voltmeter; (110) Power switch; (120) Variable transformer and rectifier; (130) Time interval input and display unit; (140) Control unit; (151) 1st channel group; (152) 2nd channel group; (159) 9th channel group; (160) 10th channel group; (AA) Commercial AC power; (BB,CC,DD,EE) Output |
