Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International Scientific Conference on Applied Physics, Information Technologies and Engineering, APITECH-III 2021
Год издания: 2021
Идентификатор DOI: 10.1088/1742-6596/2094/5/052009
Аннотация: The article analyzes the methods of wireless detonation of underground charges during drilling and blasting operations. The technologies considered are intended mainly for disrupting the integrity of rocks during tunneling and extraction of mineral resources in mines and quarries, as well as for the controlled demolition of buildinПоказать полностьюgs. The methods presented in the scientific press do not provide sufficient accuracy of time synchronization between the moment of the explosion and the command to launch the operator of the explosive machine, which is a necessary requirement for seismic exploration, and are also based on the use of magnetic antennas for wireless activation of detonators located at a depth of 30 m. The article, by the authors, on the basis of the analytical solution of equations and computational modeling, considers the physical processes of propagation of electromagnetic fields and currents induced by a grounded electric dipole, which is an alternative method of transmitting radio signals to a linear group of detonators. The most favorable operating frequency range of the channel is also analyzed based on the absorbing properties of the medium. © 2021 Institute of Physics Publishing. All rights reserved.
Журнал: Journal of Physics: Conference Series
Выпуск журнала: Vol. 2094, Is. 5
Номера страниц: 52009
ISSN журнала: 17426588
Издатель: IOP Publishing Ltd