Blasting method capable of greatly reducing blasting vibration

• Main Authors: GONG YUE, JI ZHE, YUE WENHAO, LIU BUQING, SU HONG, YAN ZHENGTUAN, CHEN GUODONG, LI PINGFENG, YAN DAYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: AMMUNITION; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention discloses a blasting method capable of greatly reducing blasting vibration, which belongs to the technical field of mining construction and comprises the following steps of: arranging slotting holes, pre-blasting vibration isolation holes, auxiliary holes, bottom holes, peripheral holes and empty holes on a working surface; coring holes are formed in the peripheral contour line, and mechanical coring is adopted; a detonator is loaded into a common explosive cartridge, and an initiating explosive package is manufactured; the common cartridges and the initiating cartridges are loaded into the slotting holes, the pre-explosion vibration isolation holes, the auxiliary holes, the bottom holes and the peripheral holes; blocking is conducted; and performing millisecond detonation. According to the method, the coring holes are formed, so that an air vibration reduction belt is formed between the blasting area and the reserved rock mass; the vibration isolation holes exploded first explode to form a vibr