Assessment of heading safety in close-spaced permanent roadways in difficult geological and geotechnical conditions

The relevance of the research is governed by the common nature of the problem connected with construction and support of large and closely-spaced roadways to be safe in difficult mining conditions. The earlier research addressed a uniform elastic medium. The present study represents a real-life rock mass as a hierarchy of blocks with discrete, mosaically nonuniform and time-variant stress–strain structures. In connection with this and to ensure stability in IV–V category rock masses, the existing safety and stability assessment procedures need being adapted to the real-life mineral mining conditions towards safety of mine operations on the basis of the obtained data. The present research produced new experimental evidence. The mathematical processing of the data by means of solving an inverse problem of geomechanics enabled predicting geomechanical and geotechnical conditions for the justification of the initial geomechanical characteristics of rock mass in the construction site of phase II permanent roadways in Kazakhstan’s 10th Anniversary of Independence Mine, Don GOK, as requested by a design institution. It is found from the research that the mutual effect of the close-spaced roadways is high in rocks having stability categories III, IV and V and the influence zones may be very large and extend to 3–7 radii from the roadway center at different depths. Construction and support of large roadways requires taking into account post-limiting deformation processes in enclosing rock mass surrounding the roadways for planning and selecting the construction sequence, the distance between the face and support installation and the support design.

Keywords: permanent roadway, rock bolt support, roadway stability, difficult geological conditions, geodynamics, strain tensor, stress–strain behavior.
For citation:

Kayumova A. N., Balek A. E., Kharisov T. F. Assessment of heading safety in close-spaced permanent roadways in difficult geological and geotechnical conditions. MIAB. Mining Inf. Anal. Bull. 2022;(7):131-147. [In Russ]. DOI: 10.25018/0236_1493_2022_7_0_131.


The study was supported in the framework of the state contract, Topic No. 075-00412-22 PR.

Issue number: 7
Year: 2022
Page number: 131-147
ISBN: 0236-1493
UDK: 622.83
DOI: 10.25018/0236_1493_2022_7_0_131
Article receipt date: 30.03.2022
Date of review receipt: 11.05.2022
Date of the editorial board′s decision on the article′s publishing: 10.06.2022
About authors:

A.N. Kayumova1, Cand. Sci. (Eng.), Senior Researcher, e-mail:, Assistant Professor, National University of Science and Technology «MISiS», 119049, Moscow, Russia, ORCID ID: 0000-0002-6064-4743,
A.E. Balek1, Dr. Sci. (Eng.), Leading Researcher, e-mail:, ORCID ID: 0000-000230407-2450,
T.F. Kharisov1, Cand. Sci. (Eng.), Senior Researcher, e-mail:, ORCID ID: 0000-0002-4668-081X,
1 Institute of Mining of Ural Branch, Russian Academy of Sciences, 620075, Ekaterinburg, Russia.


For contacts:

A.N. Kayumova, e-mail:


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