Search - Науковий вісник НГУ

1. The character of disruption of the rocks surface during rapid cooling: (Contens №5 2020); ... cooling in the surface layer of the rock, the tensile stresses are developed. The stretched layer acquires potential energy, depending on the modes of thermal influence and rock properties. At a certain ...; Created on 30 October 2020
2. Maximum surface settlement induced by shallow tunneling in layered ground: (Contens №5 2020); ... Predictions on Displacement and Stress around Shallow Tunnels Subjected to Surcharge Loadings. Tunnelling and Underground Space Technology, 71, 403-427. https://doi.org/10.1016/j.tust.2017.09.015. 3. ...; Created on 30 October 2020
3. Peculiarities of mining the protecting pillar in the laminal massif of soft rocks: (Contens №5 2020); ... massif and rheological processes of creep deformations and stress relaxation of the rock massif. Numerical modelling and analysis of the stress-strain state of the massif are conducted. Conclusions are ...; Created on 30 October 2020
4. Determining the efficient management system for a specialized transport enterprise: (Contens №4 2020); ... Cheberyachko, S. (2015). Substatiation of truck selection in terms of psychophysiologic stress on a driver minimizing. Eastern-European journal of enterprise technologies, 3(75), 15-22. https://doi.org/10.15587/1729-4061.2015.42127. ...; Created on 30 August 2020
5. Influence of mechanical and thermal treatments on microstructural transformations in cast irons and properties of synthesized diamond crystals: (Contens №4 2020); ... temperature and deformation fields that ensure transformation of polymorphic graphite to diamond with emerging gradient stress fields at the stages of forging, exposure to shock waves and thermal cycling. ...; Created on 30 August 2020
6. Evaluation of stability of sides of quarries and dumps on the basis of a risk-oriented approach: (Contens №4 2020); ... Reshetnyak, S. P., Fedotova, Yu. V., & Savchenko, S. N. (2016). Deep open pit walls design using rock mass stress-strained state. Journal of Mining Institute, 1(197), 169-172. 16. Chebakov, A. ...; Created on 30 August 2020
7. Predictability of a small-amplitude disturbance of coal seams in Western Donbas: (Contens №4 2020); ... Hirnychoho Universytetu, (1), 31-35. 4. Dixit, C. N., Hanks, L. C., Wallace, K. W., Ahmadi, M., & Awoleke, O. (2017). In situ stress variations associated with regional changes in tectonic setting, ...; Created on 30 August 2020
8. Development of an effective method for zoning the earth’s surface in heterogeneity of the rock mass: (Contens №4 2020); ... of Tomsk Polytechnic University. Engineering of georesources, 327(10), 59-68. 11. Grazulis, K. (2016). Analysis of stress and geomechanical properties in the niobrara formation of wattenberg field, ...; Created on 30 August 2020
9. The combined method for assessing risk factors in underground construction: (Contens №3 2020); Authors: B. B. Imansakipova, PhD, Head of the Department of Mine Surveying and Geodesy, orcid.org/0000-0003-0658-2112, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ...; Created on 02 July 2020
10. Using broadband signals for structural change detection in metal details: (Contens №3 2020); ... determine the stress state in the substrate–coating system under mechanical loads. Strength of Materials, 48(5), 658-667. https://doi.org/10.1007/s11223-016-9809-5. 2. Ropyak, L. Y., Shatskyi, I. ...; Created on 02 July 2020
11. Some features of drilling technology with PDC bits: (Contens №3 2020); ... of the bit edges experience the smallest load, and the incisors located in the central part of the bit are the most stressed. Originality. It was shown for the first time that the “hanging” of the ...; Created on 02 July 2020
12. Development and research of thеrmоplаstiс methods for hardening details: (Contens №2 2020); ... 10. Liu, F., Dan, W.J., & Zhang, W.G. (2017). The effects of stress state on the strain hardening behaviors of TWIP steel. Journal of Materials Engineering and Performance, 26, 2721-2728. ...; Created on 10 May 2020
13. Evaluation of blast wave parameters within the near-explosion zone in the process of rock breaking with borehole charges: (Contens №2 2020); ... Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020, (2): 47-52 https://doi.org/10.33271/nvngu/2020-2/047 повний текст / full article Abstract: Purpose. To analyse the experimental results, to describe physical mechanism of blasted rock disintegration and develop methodology to calculate blast-wave parameters within the near-explosion zone, and to study possible role of thermoelastic stresses in rock fragmentation to ultradisperse fractions in the near-explosion zone. ...; Created on 10 May 2020
14. Technological solutions development for mining adjacent rock mass and pit reserves taking into account geomechanical assessment of the deposit: (Contens №2 2020); ... Methodology. Searching for technological solutions of mining is based on the method of mining and geometric analysis of the deposit upper tier, comparison, generalization, systematization, analytical calculations, 3D parametric modeling, three-dimensional numerical modeling of stress-strain state and the rock mass stability by the finite element method. ...; Created on 10 May 2020
15. The influence of the moisture on the physical and mechanical properties of the sandstone (Separate Unit “Kapitalna” coal mine”, Donbas): (Contens №2 2020); ... Findings. According to the laboratory studies, the dependence diagrams of the normal stresses from deformations for dry and wet rock samples were obtained. The correlation of stress limit on compression, modulus of elasticity and the coefficient of lateral deformation from the moisture content of the rock were obtained. In the course of the experiment, on the average, differences of mechanical characteristics of dry and wet states of the sandstone were established: stress limit on compressive is decreased almost twice; the modulus of elasticity is reduced by 4 times; the coefficient of lateral deformation is increased by 2.3 times. ...; Created on 10 May 2020
16. Contens 01 2020: (Content №1 2020); ... elastic theory methods for describing the stress state and the modes of elastic boring 46 I. Chudyk, P. Raiter, Ya. Grydzhuk, L. Yurych.Mathematical ...; Created on 11 March 2020
17. Asymptotic method in two-dimensional problems of electroelasticity: (Content №1 2020); ... of both types. Each of the types of stress-strain states contains the main function and an auxiliary one. The expansion of the desired functions in rows by parameter eand the construction of asymptotic ...; Created on 10 March 2020
18. Development of a fiber filter for dust chambers: (Content №1 2020); ... V. O., Kalіnіchenko, O. V., Muzika, І. O., Fed’ko, M. B., & Pismennyi, S. V. (2015). The research of strain-stress state of magnetite quartzite deposit massif in the condition of mine “Gigant-Gliboka” ...; Created on 10 March 2020
19. Mathematical model of oscillations of a drill tool with a drill bit of cutting-scraping type: (Content №1 2020); ... Assessment of stressed state and performance characteristics of jacketed spring with a cut for drill shock absorber Chemical and Petroleum Engineering, 51(3), 188-193. https://doi.org/10.1007/s10556-015-0022-3. ...; Created on 10 March 2020
20. Two-dimensional elastic theory methods for describing the stress state and the modes of elastic boring: (Content №1 2020); ... текст / full article Abstract: Purpose. To find the stressed state and describe the operating regimes of an important element of mining industrial equipment – an elastic drilling bit ...; Created on 10 March 2020

Start
Prev
1
2
3
Next
End

Науковий вісник НГУ

Archive

Most read

NEW ON THE SITE

Visitors

Guest Book

Registration data

Contacts