We present the articles of the third issue of scientific journal "Mining Science and Technology” (Russia) for 2024:

Interesting studies have been conducted in the field of assessing the geotechnical stability of rock masses.

Using the calculated ratings, the rock masses of ore bodies and host sediments were evaluated for stability (classes/categories have been assigned), and the optimal method and parameters of workings support were determined. The geotechnical database accumulated during the research process provides the feasibility of calculating alternative ratings such as MRMR, RMi, GSI, etc., without the use of transient equations.

For more information, see the article:

🔥 Serebryakov E.V., Zaytsev I.A., Potaka A.A. Assessment of rating parameters of the rock mass conditions at Udachny underground mine deep levels. Mining Science and Technology (Russia). 2024;9(3):206-220. https://doi.org/10.17073/2500-0632-2023-12-192 🔥

Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈

#inenglish #MST #televiewer #jointing #stability #supports #geomechanics #mining #working #mine #rock

What determines the stability of embankment and separating dams?

The stability of the embankment and separating dams of a TSF is determined by a complex of geotechnical, hydrogeological, and anthropogenic factors. The following have the greatest influence: physical and mechanical characteristics of soils and tailings (wastes); the process of construction and operation of a structure; nature of its base; hydrodynamic, hydrostatic, seismic, and dynamic forces. A structure option of the dam body at this specific section, developed on the basis of the simulation, provided a factor of safety values for the outer slope at well no. 324-19. This was FoS = 1.664 for the main combination of loads, and FoS = 1.430 for a special combination of loads under seismic action.

For more information, see the article in the journal of Mining Science and Technology (Russia):

📌 Bessimbayeva О.G., Khmyrova E.N., Oleinikova E.A., Kasymzhanova A.E. Simulation of ash dump embankment stability. Mining Science and Technology (Russia). 2023;8(4):303-312. https://doi.org/10.17073/2500-0632-2022-11-30

Subscribe to the journal's Telegram channel:
👉 t.iss.one/MinSciTech 👈

#inenglish #MST #ash_dump #embankment #structure #slopes #stability #simulation #soil #finite_element_method #load #factor_of_safety #drawdown_curve #head_gradient

We present the articles of the third issue of scientific journal "Mining Science and Technology” (Russia) for 2024:

The resulting model can be used for general analysis of operability and stability, as well as for verifying the correct selection of key elements in the design of sucker-rod pump unit systems with variable frequency drives.

For more information, see the article:

📌 Ershov M.S., Efimov E.S. Stability of a controlled sucker-rod pump unit drive under operating conditions and during voltage dips in the electrical network. Mining Science and Technology (Russia). 2024;9(3):292-303. https://doi.org/10.17073/2500-0632-2024-01-213

Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈

#inenglish #MST #pump #drive #control #voltage #frequency #brake #mode #energy #network #generator #current #torque #power #speed #rectifier #inverter #battery #signal #model #Matlab #Simulink #algorithm #emergency #protection #recovery #compensation #load #fluctuations #stability

What are the environmental consequences of mining operations in Arctic regions?

The problems of geoenvironmental consequences of mining operations are especially acute in the arctic and subarctic regions, where the spread of permafrost significantly reduces the buffering capacity of landscapes. The research, the results of which are published in the journal Mining Science and Technology, demonstrates data on the content of heavy metals in the soil cover of the transient zone between the middle taiga and north taiga landscapes of Western Yakutia under the conditions of mining operations. The authors proposed new approaches to evaluation assesses the resistance of different types of soils to heavy metals pollution. The heavy metals content was determined by atomic absorption spectrometry. Among the studied pollutants the greatest tendency to binding by natural organic ligands was revealed for such elements as lead and copper. Zinc and nickel will actively migrate in the ionic form. Cadmium occupies an intermediate position in terms of the ratio of ionic and organically bound forms. The data presented in the study can be used in monitoring the state of the soil cover in the mining zone.

For more information, see the article:

📌 Titov A.S., Toropov A.S. Geoenvironmetal assessment of different types of cryolithic soils in Western Yakutia under the conditions of diamond-mining operations. Mining Science and Technology (Russia). 2024;9(2):170-182. https://doi.org/10.17073/2500-0632-2023-12-188

Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈

#inenglish #MST #soil #heavymetals #pollution #cryolithic #WesternYakutia #diamond #mining #enterprises #geoecology #assessment #content #metals #cover #landscape #production #stability #analysis #spectrometry #modeling #structure #humus #migration #kimberlite #complex #geochemistry #thermodynamic #sample #horizon #zinc #nickel #cadmium #lead #copper #arsenic #mercury