Zotsenko, M. L. та Vynnykov, Yu. L. та Kharchenko, M. O. та Matyash, O. V. та Vovk, M. O. (2023) IMPROVEMENT OF THE INVESTIGATION OF PHYSICAL AND MECHANICAL CHARACTERISTICS OF SEDIMENTARY ROCKS BY EXPRESS METHODS. UNIVERSITAS Publishing. с. 264-279.

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English abstract

Field and laboratory express methods for studying physical and mechanical pa- rameters of sedimentary rocks (penetration, static sounding, rotational displace- ment), as well as traditional methods of evaluating their mechanical properties, are considered. The peculiarities of detecting these characteristics for cohesive and non- cohesive sedimentary rocks are clearly divided. Theoretical prerequisites have been confirmed by experimental studies. It is proved that the objective credibility criteri- on of the reliability of the penetration and sounding characteristics is their invari- ance, embedded in the limit equilibrium equation. The method of determining the strength of sands based on the results of penetration and sounding has been devel- oped. For cohesive rocks, a method of combined testing by penetration and rotation- al shear is proposed for this. The results of experimental studies are presented, which confirm the sufficient convergence of the values of strength parameters ob- tained by standard and express methods. The generalization of experimental data is proposed according to the calculation schemes of the relationship of the properties of sedimentary rocks.

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