A precise control blasting method of underwater rock cube digital electronic detonator

Abstract

The invention discloses an underwater rock blasting method under precise control of digital electronic detonators. The method includes steps of a, cleaning and dredging a cover layer; and b, drilling and blasting underwater by details of (1) designing and calculating blasting parameters, (2) arranging holes, drilling holes, checking finished holes, charging, blocking, networking and setting security alert before blasting and (3) blasting and checking blasting effects; and c, removing slag underwater. In the method, the digital electronic detonators are used for detonating. At least two layers of powder charges are arranged in each blast hole, the powder charges on the same line of the same layer locate on the same plane while the powder charges on the adjacent lines are staggered, and detonating is carried out from bottom to top among the lines and from top to bottoms in the holes. Affection of earthquake wave, surge, impact wave and fly stone can be reduced to the utmost extent, ineffective consumption of blasting energy is lowered, blasting slags are loose and uniform, and requirements for slag removal of small-capacity grab ships in inland rivers can be met.

Description

technical field [0001] The invention belongs to the technical field of blasting, and in particular relates to a precise control blasting method of an underwater rock cube digital electronic detonator. Background technique [0002] Underwater blasting refers to blasting under the water surface, on the surface of underwater soil and rock, or inside the underwater rock formation. At present, differential electric detonators and differential non-electric nonel detonators are usually used in underwater blasting, and differential electric detonators have problems such as few series, poor quality, large segment error, and insufficient delay time, which cannot meet the requirements of short-range existence. Protect the site needs of buildings. Although the nonelectric nonel network of micro-differential nonelectric nonel detonator blasting can effectively solve the impact of the electric detonator network on the surrounding power environment and weather, the reliability of the larg...

AI Technical Summary

Problems solved by technology

At present, differential electric detonators and differential non-electric nonel detonators are usually used in underwater blasting, and differential electric detonators have problems such as few series, poor quality, large segment error, and insufficient delay time, which cannot meet the requirements of short-range existence. Protecting Building Site Requirements

Although the nonelectric nonel network of micro-differential nonelectric nonel detonator blasting can effectively solve the impact of the electric detonator network on the surrounding power environment and weather, the reliability of the large network is low, and it still cannot solve the short-range blasting vibration. Hazard problem

The current underwater blasting usually uses the traditional delay detonator to detonate, the shock wave is large, resulting in a large surge, the construction efficiency is low, the disturbance time is long, and the blasting ballast is large and scattered, which is not conducive to slag removal

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