Volodymyr Petrenko, Oleksii Tiutkin, Ihor Heletiuk, Taisiia Tkach. The new approach in evaluating the mechanism of the blast effect and organizing the blasting operations while tunneling

Details

Parent Category: Geo-Technical Mechanics, 2020

Category: Geo-Technical Mechanics, 2020, № 155

Geoteh. meh. 2020, 155, 32-37

https://doi.org/10.1051/e3sconf/202016800034

 

THE NEW APPROACH IN EVALUATING THE MECHANISM OF THE BLAST EFFECT AND ORGANIZING THE BLASTING OPERATIONS WHILE TUNNELING

¹Volodymyr Petrenko, ¹Oleksii Tiutkin, ²Ihor Heletiuk, ³Taisiia Tkach

¹Dnipro National University of Railway Transport named after Academician V. Lazaryan, ²LIMAK Office, ³Prydniprovska State Academy of Civil Engineering and Architecture

Language: English

Abstract. It is relevant for the organization of blasting operations with consideration to the mechanism of blast effect to justify new provisions due to the emergence of new explosives, means of initiating charges and instrumental measurement of parameters. In view of this, a new approach is needed for evaluating the mechanism of blast effect in the combined application of short-delay and delay-action blastings with a high level of organization and safety. Analyzing the results in the justification of the short-delayed blasting, obtained by many researchers in recent decades, its main advantages and some limitations in its evaluation have been identified. A clear justification for the combined application under seismic safety is provided. New results to explain the mechanism of the blast effect in the combined application of short-delay and delay-action blastings at tunneling facilities have been obtained. They help in the seismic action reduction under the conditions of close city development. Methodological approaches to organize blasting operations at complex facilities in Ukraine implemented during tunneling have been developed.

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