Scholarly record
INVESTIGATION OF STRENGTH AND MICROSEISMIC EMISSION CHARACTERISTICS OF ROCK JOINTS UNDER SHEAR LOADING
Abstract
The geological environment is essentially heterogeneous, consists of blocks, layers, lenses, joints of various shapes and sizes, lying horizontally, obliquely or in the form of complex folds in the earth's crust, and it is characterized by great complexity and heterogeneity. The shear in the direction of the joint is one of the main reasons for the destruction of the underground tunnels and mine workings, wellbores. Understanding of shear behavior allows optimal design of mining facilities and prediction of the geomechanical state of rock massifs. To investigate the geomechanical properties of the rock joints under direct shear the measurement complex was created on the base of servohydraulic press Instron 8802This complex was equipped by the system for recording of microseismic emission signals. The tests were conducted according to the methodology of the International Society for Rock Mechanics ASTM D5607-08. Multistage shear tests were conducted on rocks: 1) clay weathering crust samples, strength limit less than 2 MPa; 2) tuff sandstone samples, strength limit 60?100 MPa) with varying surface roughness. Analysis of the experimental data obtained in tests under direct shear, uniaxial compression and tension allowed to conclude that mechanical behavior of the rock is determined not only by the properties of unbroken rock, but even, to a greater extent by mechanical and geometrical properties of rock joints. Based on complex analysis of experimental data, new estimates of the strength of joints are received for diagnostic the processes of destruction in the early stages and predict the static and dynamic shear destruction of the rock massifs.
Publication Impact Profile
Publication details
References16
Atapour H., Moosavi M. The Influence of Shearing Velocity on Shear Behavior of Artificial Joints. Rock Mechanics and Rock Engineering, Vol. 47, Iss.5, pp. 1745–1761, 2014.
Gao Y., Wong L. N. Y. A Modified Correlation Between Roughness Parameter Z 2 and the JRC. Rock Mechanics and Rock Engineering, Vol. 48, Iss.1, pp. 387–396., 2015.
Hencher S. R., Richards L. R. Assessing the Shear Strength of Rock Discontinuities at Laboratory and Field Scales. Rock Mechanics and Rock Engineering, Vol. 48, Iss.3, pp. 883-905, 2015.
Indraratna B., Thirukumaran S., Brown E. T., Zhu S. P. Modelling the Shear Behaviour of Rock Joints with Asperity Damage Under Constant Normal Stiffness. Rock Mechanics and Rock Engineering, Vol. 48, Iss.1, pp. 179-195, 2015.
Jang H. S. , Jang B. A . New Method for Shear Strength Determination of Unfilled, Unweathered Rock Joint. Rock Mechanics and Rock Engineering, July 2015, Vol. 48, Iss.4, pp. 1515–1534, 2015.
Meng F., Zhou H, Wang Z. et al. Experimental study on the prediction of rockburst hazards induced by dynamic structural plane shearing in deeply buried hard rock tunnels. International Journal of Rock Mechanics and Mining Sciences, Vol. 86, pp. 210-223, 2016.
Mirzaghorbanali A., Nemcik J., Aziz N. Effects of Cyclic Loading on the Shear Behaviour of Infilled Rock Joints Under Constant Normal Stiffness Conditions. Rock Mechanics and Rock Engineering, Vol. 47, Iss.4, pp. 1373–1391, 2014.
Mohd-Nordin M. M., Song K. I., Cho G. C., Mohamed Z. Long-Wavelength Elastic Wave Propagation Across Naturally Fractured Rock Masses. Rock Mechanics and Rock Engineering, Vol. 47, Iss.2, pp. 561–573, 2014.
Moradian Z.A., Ballivy G., Rivard P. Correlating acoustic emission sources with damaged zones during direct shear test of rock joints. Canadian Geotechnical Journal, Vol. 49, Iss.6, pp. 710–718, 2012.
Vostrikov V., Usol'tseva O., Tsoi P., Semenov V. Stagewise deformation of rocks and character of change in parameters of microseismic signal // 16 International multidisciplinary scientific geoconference (SGEM 2016) : proc. of conf., Bulgaria, Albena, 30 Jun–6 Jul, 2016. – Albena: STEF92 Technology Ltd., Book 1, Vol. 2, pp. 811-818, 2016.
Usol’tseva O., Vostrikov V., Tsoi P., Semenov V. (2017). Integrated research into features of physical fields in model geomedium with discontinuity generated under external stresses // 17 International multidisciplinary scientific geoconference (SGEM 2017): proc. of conf., Bulgaria, Albena, 29 Jun–5 Jul, 2017. – Albena : STEF92 Technology Ltd., Vol. 17, Iss. 13, pp. 461-469, 2017.
Vergara M. R., Kudella P., Triantafyllidis T. Large Scale Tests on Jointed and Bedded Rocks Under Multi-Stage Triaxial Compression and Direct Shear. Rock Mechanics and Rock Engineering, Vol. 48, Iss.1, pp. 75-92, 2015.
Xia C. C., Tang Z. C.G, Xiao W. M., Song Y. L. New Peak Shear Strength Criterion of Rock Joints Based on Quantified Surface Description. Rock Mechanics and Rock Engineering, Vol. 47, Iss.2, pp. 387–400, 2014.
Zhou H., Meng F.Z., Zhang C.Q. et al. Investigation of the acoustic emission characteristics of artificial saw-tooth joints under shearing condition. Acta Geotechnica, Vol. 11, Iss. 4, pp. 925–939, 2014.
Wittke W. Rock mechanics: theory and applications with case histories. Springer-Verlag, Berlin, P.1076, 1990.
Muralha J., Grasselli G., Tatone B., Blümel M., Chryssanthakis P., Yujing J.. ISRM Suggested Method for Laboratory Determination of the Shear Strength of Rock Joints: Revised Version. Rock Mechanics and Rock Engineering, 2014, Vol. 47, Iss.1, pp. 291–302, 2014.
Citing literature
Number of times cited according to Crossref: 2
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
