Author(s)

Wang Zhen, Li Ang

Corresponding Author

Wang Zhen

ABSTRACT

Due to the complexity of blasting parameters and the uncertainty of blasting effect evaluation, how to establish the relationship between blasting parameters and blasting effect is an urgent technical problem in the field of blasting parameter optimization. According to the difference between the control function and the evaluation function in the blasting process, this paper divides the blast parameter variable into the control factor variable and the evaluation factor variable, and establishes the gray correlation degree matrix between each factor by grey correlation analysis method, and determines the influence of blasting parameters on the blasting effect. The method will provide a theoretical basis for the optimization of blasting parameters. At the same time, combines with the on-site blasting tests, evaluates the influence of blasting parameters such as explosive unit consumption, explosive wave impedance, blasthole density coefficient and minimum resistance line on blasting effect. The results show that among the many blasting parameters, the single consumption of explosives has the most obvious influence on the blasting effect. In the parameter optimization, the influence of explosive unit consumption should be considered.

KEYWORDS

Blasting parameters, Blasting effect, Grey association, Explosive unit consumption