We present the articles of the third issue of scientific journal "Mining Science and Technologyβ (Russia) for 2024:
The performed study allowed to develop a model of hyperbolic time-distance curve of GPR impulses reflected from a local feature located in a rock mass with an arbitrary number of layers. Practical application of the obtained results in studies aimed at automated determination of electrophysical properties of rocks and soils by hyperbolic time-distance curves will allow to create a database with up-to-date information on dielectric permittivity of rocks.
For more information, see the article:
π₯ Sokolov K.Π. Model of time-distance curve of electromagnetic waves diffracted on a local feature in the georadar study of permafrost zone rock layers. Mining Science and Technology (Russia). 2024;9(3):199-205. https://doi.org/10.17073/2500-0632-2023-05-118 π₯
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#inenglish #MST #model #rock_mass #rock #dielectric_permittivity #velocity #hyperbola #layer #georadar #permafrost_zone #gprMax
The performed study allowed to develop a model of hyperbolic time-distance curve of GPR impulses reflected from a local feature located in a rock mass with an arbitrary number of layers. Practical application of the obtained results in studies aimed at automated determination of electrophysical properties of rocks and soils by hyperbolic time-distance curves will allow to create a database with up-to-date information on dielectric permittivity of rocks.
For more information, see the article:
π₯ Sokolov K.Π. Model of time-distance curve of electromagnetic waves diffracted on a local feature in the georadar study of permafrost zone rock layers. Mining Science and Technology (Russia). 2024;9(3):199-205. https://doi.org/10.17073/2500-0632-2023-05-118 π₯
Subscribe to the journal's Telegram channel:
πt.iss.one/MinSciTechπ
#inenglish #MST #model #rock_mass #rock #dielectric_permittivity #velocity #hyperbola #layer #georadar #permafrost_zone #gprMax
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π Hidden Layers in Permafrost: New Study Decodes GPR Interpretation Challenges
Ground-penetrating radar (GPR) is indispensable for subsurface exploration, but interpreting data in complex multilayered permafrost remains problematic. A new study offers a solution to accurately determine rock properties in permafrost environments.
π₯ Key Findings:
1. Layered Media Model
A mathematical model describes EM wave behavior through alternating frozen/thawed layers, focusing on hyperbolic signatures in radargrams β critical for data interpretation.
Important limitation:
βοΈ The model excludes EM wave dispersion/absorption effects.
2. Measurement "Deception"
A mere 0.5 m thawed layer (within a 4.5 m rock mass) can reduce apparent wave velocity by ~10%, while remaining undetected in standard analysis.
3. Digital Validation:
Simulations in gprMax and GeoScan32 confirmed model accuracy with <0.5% error.
π Applications:
βοΈ improved ground stability assessment for construction;
βοΈ detection of hazardous thawed layers;
βοΈ enhanced automated GPR data processing.
βοΈ Technical Specs:
βοΈ Ricker pulses at 400 MHz;
βοΈ Up to 9 layers analyzed;
βοΈ Dielectric permittivity: Ξ΅'=4β20.
Original study:
π Sokolov K.Π. Model of time-distance curve of electromagnetic waves diffracted on a local feature in the georadar study of permafrost zone rock layers. Mining Science and Technology (Russia). 2024;9(3):199-205. https://doi.org/10.17073/2500-0632-2023-05-118
π Follow our channel: t.iss.one/MinSciTech
#inEnglish #MST #Geophysics #Cryolithozone #Georadar #Permafrost #SoilScience #EngineeringGeology #GPR #SubsurfaceExploration #GeophysicalMethods #RockProperties #SoilPhysics #Geotechnics #Radargram #HyperbolicModel #ElectromagneticWaves
Ground-penetrating radar (GPR) is indispensable for subsurface exploration, but interpreting data in complex multilayered permafrost remains problematic. A new study offers a solution to accurately determine rock properties in permafrost environments.
π₯ Key Findings:
1. Layered Media Model
A mathematical model describes EM wave behavior through alternating frozen/thawed layers, focusing on hyperbolic signatures in radargrams β critical for data interpretation.
Important limitation:
βοΈ The model excludes EM wave dispersion/absorption effects.
2. Measurement "Deception"
A mere 0.5 m thawed layer (within a 4.5 m rock mass) can reduce apparent wave velocity by ~10%, while remaining undetected in standard analysis.
3. Digital Validation:
Simulations in gprMax and GeoScan32 confirmed model accuracy with <0.5% error.
π Applications:
βοΈ improved ground stability assessment for construction;
βοΈ detection of hazardous thawed layers;
βοΈ enhanced automated GPR data processing.
βοΈ Technical Specs:
βοΈ Ricker pulses at 400 MHz;
βοΈ Up to 9 layers analyzed;
βοΈ Dielectric permittivity: Ξ΅'=4β20.
Original study:
π Sokolov K.Π. Model of time-distance curve of electromagnetic waves diffracted on a local feature in the georadar study of permafrost zone rock layers. Mining Science and Technology (Russia). 2024;9(3):199-205. https://doi.org/10.17073/2500-0632-2023-05-118
π Follow our channel: t.iss.one/MinSciTech
#inEnglish #MST #Geophysics #Cryolithozone #Georadar #Permafrost #SoilScience #EngineeringGeology #GPR #SubsurfaceExploration #GeophysicalMethods #RockProperties #SoilPhysics #Geotechnics #Radargram #HyperbolicModel #ElectromagneticWaves
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