VAK Russia 1.6 UDC 550.8.01 CSCSTI 37.01 Russian Classification of Professions by Education 05.00.00 Russian Library and Bibliographic Classification 26 Russian Trade and Bibliographic Classification 63 BISAC SCI UDC 550.34.016 UDC 550.394 UDC 55 UDC 550.34 UDC 550.383 CSCSTI 37.15 CSCSTI 37.25 CSCSTI 37.31 CSCSTI 38.01 CSCSTI 36.00 CSCSTI 37.00 CSCSTI 38.00 CSCSTI 39.00 CSCSTI 52.00

CHANGE IN FAULT ZONE PERMEABILITY DUE TO SEISMIC VIBRATIONS Change in Fault Zone Permeability Due to Seismic Vibrations

Published in Russian Journal of Earth Sciences · Volume 26, Issue 4 · ELocator: ES4005 · Rubric: ORIGINAL ARTICLES
DOI: https://doi.org/10.2205/2026ES001150 · EDN: GTTIQA
Received: 01.06.2026 Accepted: 15.06.2026 Published: 20.10.2026
The prediction of emergency situations arising from water breakthroughs during the development of solid mineral deposits or during the construction of large underground structures is very difficult due to the high heterogeneity of filtration properties of the rock mass and the uncertainty of hydrogeological characteristics of fault zones, which are the main pathways for fluid flow. This paper studies several mechanisms of changes in the hydraulic characteristics of fault zones under the influence of seismic vibrations. We use observational data obtained during large underground explosions in rock masses as an experimental basis. The study analyzed unique archival materials obtained at the Institute of Geosphere Dynamics of the Russian Academy of Sciences during the preparation and execution of large-scale underground explosions conducted by the USSR at the Semipalatinsk Test Site (now the Republic of Kazakhstan) and at several mining enterprises in Russia. As a result, cases of predominance of different mechanisms of permeability change have been distinguished across a wide range of dynamic loads. The analysis performed has led to the conclusion that even relatively weak dynamic impacts can cause a noticeable hydrogeological response. Moreover, this occurs not due to the formation of new filtration pathways, but due to “clearing” the already existing fracture-pore space.
tectonic fault, seismic effect of explosion, slow Biot waves, colloids, pore pressure, permeability, filtration properties, unclogging
Funding
This work was fulfilled under the State Assignment of the Institute of Geosphere Dynamics, Russian Academy of Sciences (IDG RAS).
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