Weakening of rock strength under the action of cyclic dynamic loads

Коробійчук, Валентин Вацлавович; Кравець, Віктор Георгійович; Sobolevskyi, Ruslan; Han, Anatolii Leonidovych; Вапнічна, Вікторія Вікторівна

doi:10.15587/1729-4061.2018.127847

Cited by 17 publications

(7 citation statements)

References 9 publications

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“…Ground-cement piles built using jet-grouting technology with a diameter of 0.8 m in increments of 1.8 m from the center of the axis and a calculated deformation modulus of 3000 MPa are used as fixing elements of the array [17][18][19].…”

Section: Resultsmentioning

confidence: 99%

Justification of the method of soil densification of the interstation tunnel by jet injection based on computer modeling

Вапнічна

Коробійчук

Zuievska

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The article is devoted to a topical issue - the development of a method of densification of the base of the underground interstation tunnel to prevent further intensive subsidence of tunnel structures. Based on computer-mathematical modeling, the work establishes experimental dependence between the angle of inclination of jet grouting piles and the amount of subsidence of the distribution plate on which the tunnel structures rest upon. Inspection of the technical condition and analysis of defects in a comprehensive comparison with subsidence graphs allowed us to identify the main typical deformations during subsidence of a shallow tunnel built from blocks of a solid-section frame, namely their characteristic features, geometric parameters and placement points.

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Section: Resultsmentioning

confidence: 99%

Justification of the method of soil densification of the interstation tunnel by jet injection based on computer modeling

Вапнічна

Коробійчук

Zuievska

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Scientific works were carried out to determine the influence of the parameters of blasting operations on the seismic state, on the levels of stress concentration, zones of location of block stone ledges during parallel extraction of block and crushed stone products within the same granite deposit of Leznykivskyi quarry JSC [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Determination of the seismic effect of a mass explosion on the earthquake resistance of ledges of block products

Korobiichuk,

Iskov,

Leonets

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The publication examines the impact of seismic waves from the mass detonation of the gravel section of the quarry on solid areas suitable for extracting dimension stone in the conditions of the Leznikivsky quarry (Ukraine). Seismic measurements in the quarry were analyzed. Based on the obtained data, seismic-safe zones for mass detonations of gravel sections were identified, and the maximum allowable charges of explosive materials in a single borehole were calculated.

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“…A great number of domestic and foreign researchers devote their works to the issues of non-blasting development and mechanical properties of rocks Sobolevskyi, Zuievska et al, 2016;Korobiichuk et al, 2018;Levytskyi et al, 2018). The results of studies on the expediency of using ripper bulldozers are presented in (Zou, 2017).…”

Section: Introductionmentioning

confidence: 99%

Conceptual development of the transition from drill and blast excavation to non-blasting methods for the preparation of mined rock in surface mining

Sobko

Ложніков

Levytskyi

et al. 2019

MGPB

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This article is devoted to the conceptual development of the transition from drill and blast excavation to a non-blasting method for the preparation of hard rock before excavation at construction material deposits. The scientifi c and technical literature on the problems in the blasting of hard rock in preparation for excavation is analysed. A classifi cation of mining equipment for the non-blasting development of a rock mass for excavation has been developed, taking into account the nature of the operation of mining equipment. The concept of the transition from drill and blast excavation to nonblasting methods in the preparation of mined rock in non-metallic material quarries is presented. The research results of the parameter determination of the elements of the system for the development of non-blasting equipment at a limestone quarry are presented. The economic effi ciency of a hydraulic excavator with a ripper tooth for developing limestone with a strength of up to 30 MPa is established.

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Weakening of rock strength under the action of cyclic dynamic loads

Cited by 17 publications

References 9 publications

Justification of the method of soil densification of the interstation tunnel by jet injection based on computer modeling

Justification of the method of soil densification of the interstation tunnel by jet injection based on computer modeling

Determination of the seismic effect of a mass explosion on the earthquake resistance of ledges of block products

Conceptual development of the transition from drill and blast excavation to non-blasting methods for the preparation of mined rock in surface mining

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