Authors: I.A. Konstantinov, B.L. Talgamer, A.E. Starkov

Title of the article: Increasing the efficiency of stripper operations in degrading permalfrost conditions

Year: 2024, Issue: 6, Pages: 133-139

Branch of knowledge: 2.8.8 Geotechnology, mining machines

Index UDK: 622

DOI: 10.26730/1999-4125-2024-6-133-139

Abstract: The relevance of the work lies in the fact that in the conditions of degrading permafrost, the traditional approach to managing the quality of drilling and blasting operations (D&B), based on managing the D&B parameters, turned out to be ineffective due to spontaneous disruption of the structure of the explosive charge (EC) in drilling and blasting holes, and it was necessary to test a fundamentally new approach to managing the quality of D&B in these conditions. The purpose of this work is to assess, in production conditions, the dependence of the quality of blasting preparation of overburden rocks in degrading permafrost conditions on the height of the bench being mined (i.e., the parameter of the main, excavation and loading process). During the work, an experimental test was carried out under production conditions of the dependence of the quality of blasting preparation of overburden rocks in degrading permafrost conditions on the height of the bench being mined. Parameters were also identified that quantitatively characterize stripping operations in degrading permafrost conditions for different development options. As a result of the work, the previously established dependence of the quality of blast preparation of overburden rocks on the height of the bench being mined in conditions of degrading permafrost was confirmed, and the optimal technology for developing overburden rocks in these conditions was substantiated.

Key words: Degrading permafrost overburden excavator-dumping technological complex excavator-vehicle-dumping technological complex drilling and blasting operations regulation of the degree of crushing of rocks by explosion

Receiving date: 02.10.2024

Approval date: 22.11.2024

Publication date: 05.12.2024

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