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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Drilling and blasting of large-section mining workings in permafrost conditions by the solid failing method

Original articles: 2026 No 5

Drilling and blasting of large-section mining workings in permafrost conditions by the solid failing method

DOI: 10.56195/20793332-2026-26-5-56-64

Read in pdf V. F. Gutnik1, A. N. Anushenkov2
  1. JSC Mosproekt-3, Moscow, Russian Federation
  2. Institute of Non-Ferrous Metals, Siberian Federal University, Krasnoyarsk, Russian Federation
p. 56-64, No.5/2026
Abstract:
Transport infrastructure is currently being actively developed in remote regions of the Russian Federation, specifically increasing the capacity of the Trans-Siberian and Baikal-Amur Mainlines. To address this challenge, new tunnels must be constructed. Drilling and blasting have been and remain one of the primary methods for excavating mine workings, and the method of excavation is crucial and determines the key technical and economic indicators of a project. Compared to the bench method, continuous stoping (full-section tunneling) allows for increased speed by reducing the number of key operations in the work cycle, ultimately bringing the working to its design cross-section. Furthermore, full-section tunneling allows for parallel construction of a permanent lining at some distance from the working face. These factors reduce construction time and, consequently, the overall project cost. One of the key factors determining the quantitative and cost metrics for reducing construction time and costs is increasing the face length per drilling and blasting cycle. Increasing the length of the developed face is challenging, as it typically reduces blast efficiency, resulting in a decrease in blasthole utilization. This article presents and describes in detail an innovative cutting scheme and drilling and blasting protocols that enable efficient development of large-diameter mine workings using continuous face mining in permafrost conditions. It also presents a methodology for its development, based on modeling and experimental testing of various variations of the modeled schemes during the construction of a railway tunnel running through permafrost.
Keywords:
driving, tunnel, continuous face method, permafrost, blasting pattern, utilization factor of blasthole, borehole, cut
For citation:
Gutnik V.F., Anushenkov A.N. Drilling and blasting of large-section mining workings in permafrost conditions by the solid failing method. Mine Surveying and Subsurface Use. 2026; 26 (5): 56-64. (In Russ.). https://doi.org/10.56195/20793332-202626-5-56-64
Information about the authors:
  1. Vyacheslav F. Gutnik – Project Manager for a separate subdivision in Chelyabinsk, JSC MOSPROEKT-3, "Construction of a high-speed transport line in Chelyabinsk. North-South Line.", Moscow, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
  2. Aleksandr N. Anushenkov – Dr. Sci. (Eng.), Professor, Head of the Department of Underground Mining of Deposits, Institute of Non-Ferrous Metals, Siberian Federal University, Krasnoyarsk, Russian Federation
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