Scientific Quarterly Journal of Iranian Association of Engineering Geology

Scientific Quarterly Journal of Iranian Association of Engineering Geology

Estimation of Safe Charge per Delay in Bench Blastıng

Document Type : Original Article

Authors
Aref Alipour 1
Mojtaba Mokhtarian-Asl 2
1 Mining Engineering Urmia University of Technology
2 Faculty of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, P.O. Box 57166-17165, Iran
Abstract
Prediction of maximum safe charge per delay (Q , kg) by Distance (D) from blasting point and adaptive Peak Particle Velocity (PPV) is a critical key for successful blasting. Safe charge per delay is calculated by using PPV estimators indirectly or Q estimator directly. This paper presents the results of ground vibration measurement induced by bench blasting in Sungun copper mine. The scope of this study is to evaluate the capability of different methods in order to predict maximum safe charge per delay. Conventional empirical models and two type of new non-linear dirict estimator models are prsented. An application of Imperialist Competitive Algorithm (ICA) has used to determine the Q estimator coefficients in Sungun bench blasting. A comparison between two ways of investigations including conventional empirical equations and ICA are done. It has been shown that the applicability of ICA-based equations is more promising than any selected traditional empirical equations.
Keywords
Blasting
safe charge per delay
PPV
ICA
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  • Receive Date 25 November 2020
  • Revise Date 29 May 2021
  • Accept Date 17 July 2021