Skip to main content
main-content
Top

Hint

Swipe to navigate through the articles of this issue

22-07-2017 | Original Article | Issue 2/2018

Engineering with Computers 2/2018

Optimization of flyrock and rock fragmentation in the Tajareh limestone mine using metaheuristics method of firefly algorithm

Journal:
Engineering with Computers > Issue 2/2018
Authors:
Parvin Faraji Asl, Masoud Monjezi, Jafar Khademi Hamidi, Danial Jahed Armaghani

Abstract

A successful and favorable explosion not only causes a proper rock fragmentation, but also decreases the unfavorable and unwanted environmental issues caused by explosion such as ground vibration, flyrock, air-overpressure and back-break. Therefore, anticipation and optimization of these issues produced by blasting operations is significant. In this study, an attempt has been made to design the effective factors on Tajareh limestone mine explosion [i.e., burden, blast-hole, spacing, hole length, sub-drilling, stemming, powder factor, charge in each delay and Geological Strength Index (GSI)] in order to reduce improper fragmentation and flyrock. Since the experimental methods are not suitable in terms of accuracy, using artificial neural network (ANN) and firefly algorithms, flyrock and rock fragmentation were predicted and optimized, respectively. After collecting data and selecting the most effective parameters on flyrock and rock fragmentation, an ANN model was developed, and then its results were called by firefly algorithm for optimizing process. ANN results according to coefficient of determination (R 2) and root mean square error (RMSE) were obtained as 0.94 and 0.1, 0.93 and 0.09, respectively, for fragmentation and flyrock. The outcome results of modeling and optimization showed a decrease of 42.9 and 32.9% in results of flyrock and rock fragmentation, respectively. In addition, results of optimization process were obtained as: 2 m of burden, 2.9 m of spacing, 7.5 m of hole length, 0.7 m of sub-drilling, 1.9 m of obstruction length, 0.69 kg/m3 of powder factor, 1443 kg of charge in each delay and 55.5 of GSI. Based on the obtained results of sensitivity analysis, it was found that GSI and burden receive the highest influence values on both flyrock and rock fragmentation.

Please log in to get access to this content

To get access to this content you need the following product:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 50.000 Bücher
  • über 380 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Maschinenbau + Werkstoffe




Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 58.000 Bücher
  • über 300 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Testen Sie jetzt 30 Tage kostenlos.

Literature
About this article

Other articles of this Issue 2/2018

Engineering with Computers 2/2018 Go to the issue