We present the articles of the third issue of scientific journal "Mining Science and Technology” (Russia) for 2024:
A systematic approach to evaluating environmental safety in metro operations, based on modelling the development of defects in tunnel structures under the influence of hydrogeological factors, will help organize existing information on potential accidents and develop monitoring methods and measures to minimize risks that compromise the environmental sustainability of underground transport infrastructure.
For more information, see the article:
📌 Zhukov S.A. Substantiation of environmental safety in metro facility operations considering hydrogeological risks. Mining Science and Technology (Russia). 2024;9(3):283-291. https://doi.org/10.17073/2500-0632-2024-04-259
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👉t.iss.one/MinSciTech👈
#inenglish #MST #metro #underground #subway #ecology #safety #innovation #risks #geology #transport #hydrogeology #sustainability #accident #monitoring #tunnel #technology #construction #emission #energy #efficiency #concrete #defects #extraction #quicksand #aquifer #borehole #lining #deformation #leaching #tubbing #modeling #geomechanics #waterproofing #disposal #waste
A systematic approach to evaluating environmental safety in metro operations, based on modelling the development of defects in tunnel structures under the influence of hydrogeological factors, will help organize existing information on potential accidents and develop monitoring methods and measures to minimize risks that compromise the environmental sustainability of underground transport infrastructure.
For more information, see the article:
📌 Zhukov S.A. Substantiation of environmental safety in metro facility operations considering hydrogeological risks. Mining Science and Technology (Russia). 2024;9(3):283-291. https://doi.org/10.17073/2500-0632-2024-04-259
Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈
#inenglish #MST #metro #underground #subway #ecology #safety #innovation #risks #geology #transport #hydrogeology #sustainability #accident #monitoring #tunnel #technology #construction #emission #energy #efficiency #concrete #defects #extraction #quicksand #aquifer #borehole #lining #deformation #leaching #tubbing #modeling #geomechanics #waterproofing #disposal #waste
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How do the parameters and characteristics of seismic-acoustic data acquisition systems affect the quality of geophysical and seismic exploration surveys?
In the case of helically-wound fiber, the frequency response depends on several key factors: integrating the measured value along the fiber based on the measurement; the angle of incidence on the cable; and the winding angle of the fiber in the cable. The authors of the article published in the journal "Mining Science and Technology" demonstrated that increasing the winding angle enhances the uniformity of the amplitude-frequency characteristics of longitudinal waves both in terms of frequencies and angles of incidence. At the same time, helical winding changes the effective response spacing (gauge length). This makes it possible, by summing the responses of the straight and helically-wound fibers due to the overlap of the spectra, to record frequencies that are suppressed in case of separate recording.
For more information, see the article:
📌 Chugaev A.V., Tarantin M.V. Amplitude-frequency response of a helically-wound fiber distributed acoustic sensor (DAS). Mining Science and Technology (Russia). 2023;8(1):13-21. https://doi.org/10.17073/2500-0632-2022-06-10
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👉t.iss.one/MinSciTech👈
#inenglish #MST #distributedacousticsensor #DAS #fiberopticsensor #seismicexploration #seismoacoustics #borehole #boreholeseismoacoustics #rayleighscattering #directivitypattern #amplitudefrequencyresponse #helicalwinding #longitudinalwaves #transversewaves #frequencyrange #effectivegaugelength #windingangle #incidenceangle #seismicwaves #mining #seismoacousticsignals #distributedsystems #fiberopticcable #frequencyresponse #frequencyrejection #signalsummation #broadbandsignals #boreholemeasurements #surfacemeasurements #bendradius #attenuationcoefficient #seismicsurveys #geophysicaltasks #opticalinterferometry
In the case of helically-wound fiber, the frequency response depends on several key factors: integrating the measured value along the fiber based on the measurement; the angle of incidence on the cable; and the winding angle of the fiber in the cable. The authors of the article published in the journal "Mining Science and Technology" demonstrated that increasing the winding angle enhances the uniformity of the amplitude-frequency characteristics of longitudinal waves both in terms of frequencies and angles of incidence. At the same time, helical winding changes the effective response spacing (gauge length). This makes it possible, by summing the responses of the straight and helically-wound fibers due to the overlap of the spectra, to record frequencies that are suppressed in case of separate recording.
For more information, see the article:
📌 Chugaev A.V., Tarantin M.V. Amplitude-frequency response of a helically-wound fiber distributed acoustic sensor (DAS). Mining Science and Technology (Russia). 2023;8(1):13-21. https://doi.org/10.17073/2500-0632-2022-06-10
Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈
#inenglish #MST #distributedacousticsensor #DAS #fiberopticsensor #seismicexploration #seismoacoustics #borehole #boreholeseismoacoustics #rayleighscattering #directivitypattern #amplitudefrequencyresponse #helicalwinding #longitudinalwaves #transversewaves #frequencyrange #effectivegaugelength #windingangle #incidenceangle #seismicwaves #mining #seismoacousticsignals #distributedsystems #fiberopticcable #frequencyresponse #frequencyrejection #signalsummation #broadbandsignals #boreholemeasurements #surfacemeasurements #bendradius #attenuationcoefficient #seismicsurveys #geophysicaltasks #opticalinterferometry
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