OF EARTH SCIENCES. Geomechanics, rock destruction
Kuksenko V.S., Makhmudov Kh. F., Ilinov M.D., Abdurahmanov Z.
VIKTOR S. KUKSENKO, Doctor of Physical and Mathematical Sciences, Professor, Senior Researcher, Laboratory of Strength Physics, Ioffe Institute, RAS, St. Petersburg, e-mail: Victor.Kuksenko@mail.ioffe.ru
KHAIRULLO F. MAKHMUDOV, Candidate of Physical and Mathematical Sciences, Laboratory of Strength Physics, Ioffe Institute, RAS, St. Petersburg, Associate Professor Department of Plant Safety, National Mineral Resources University, St. Petersburg,
e-mail: h.machmoudov@mail.ioffe.ru
MIHAIL D. ILINOV, Candidate of Technical Sciences, Head of Laboratory (National Mineral Resources University, St. Petersburg),
е-mail: ilinov_md@spmi.ru
ZAFAR ABDURAHMANOV, Graduate, Khojend State University, Tajikistan, е-mail: hgu-rector@khujandi.com
Microscopic analysis of heterogeneous solids (CaCO3) at a residual deformation in the conditions of volume compression
The rocks in geosphere being under overall compression, it became a necessity to explore rock samples in these conditions. Researchers were performed on heterogeneous solids (CaCO3) in a high-pressure chamber with applying 12 combinations of lateral and axial deformation. The relative effect from lateral and uniaxial deformation on the mechanical behaviour of heterogeneous solids (CaCO3) was studied using acoustic emission (AE) technique. Posteriori changes in the sample morphology were analised using both optical microscopy and an automatic image analyser Quantimet 720. The main finding of the work is the alteration of predominantly plastic and predominantly brittle behavior in dependence of the loading geometry.
Key words: microstructure, marble (CaCO3), high pressure, optical microscopy, acoustic emission, strain.
