Effect of stability variation in chemically reinforced ground under multiple thermomechanical loads on thermally stimulated acoustic emission patterns

The article generalizes and analyzes experimental research findings on the effect of temperature conditions on acoustic emission patterns in initially loose (incoherent) collapsible soil subjected to cyclic repeatedly varied quasistatic mechanical loading in simultaneous reinforcement by injection of binding composite solutions. The guidelines to routinize the raw data processing and the approaches to theoretical interpretation of the found regular patterns are given. The application of the found laws is described as case-studies of soil stability variation in interaction of two opposite processes: consolidation and weakening of structural bonds in soil–grouting geomaterial. The chemically reinforced ground possesses thermally stimulated acoustic emission memory which, based on its features, can be assumed as an equivalent of the classical Felicity effect. The disclosed physical mechanism of the thermally stimulated acoustic emission memory explains its behavior. The article illustrates the potential advisability of using the thermally stimulated acoustic emission method in the quality control of injection operations in grounds susceptible to sliding, subsidence and other hazardous geological processes capable to induce instability in rock masses.

Keywords: soils, temperature conditions, load-bearing capacity, stress state, artificial reinforcement, acoustic emission, regular patterns, experience, geocontrol development, acoustic emission memory effect.
For citation:

Novikov E. A., Klementyev E. A. Effect of stability variation in chemically reinforced ground under multiple thermomechanical loads on thermally stimulated acoustic emission patterns. MIAB. Mining Inf. Anal. Bull. 2023;(3):83-106. [In Russ]. DOI: 10.25018/ 0236_1493_2023_3_0_83.


The study was supported by the Russian Foundation for Basic Research, Project No. 21-77-00010.

Issue number: 3
Year: 2023
Page number: 83-106
ISBN: 0236-1493
UDK: (624.131.37+624.138+551.34):(534.2+534.6)
DOI: 10.25018/0236_1493_2023_3_0_83
Article receipt date: 11.12.2022
Date of review receipt: 23.01.2023
Date of the editorial board′s decision on the article′s publishing: 10.02.2023
About authors:

E.A. Novikov1, Cand. Sci. (Eng.), Assistant Professor, e-mail: e.novikov@misis.ru, Scopus ID: 55235147200, ORCID ID: 0000-0002-6997-1097,
E.A. Klementyev1, Student, e-mail: evgeniy-klementevof@mail.ru, Scopus ID: 57217249165, ORCID ID: 0000-0001-7242-0440,
1 National University of Science and Technology «MISiS», 119049, Moscow, Russia.


For contacts:

E.A. Novikov, e-mail: e.novikov@misis.ru.


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