INVESTIGATION OF DEVICE FOR GEOPHYSICAL EXPLORATION AT SHALLOW DEPTH

Obbozzhon Kuldashev, Ibrohimzhon Tojiboev

Abstract


The article presents the results of the development of the echolocation device for geophysical exploration at shallow depth. The principle of operation, block diagram and time diagrams of the echolocation device for geophysical exploration at shallow depths are outlined. The urgency of developing an echolocation device for geophysical exploration at shallow depth is revealed in the conditions of a lack of mineral resources, the need to replenish them with the help of discovering new deposits.

It is analyzed that under the action of a shock wave, multi-frequency harmonic damped seismic waves are excited to the earth's surface, the frequency band of which is 1-200 Hz.

When detonation generators are used to control the earth's crust, the duration of the impact pulse is on the order of one millisecond and the frequency range at 0.5 from the maximum amplitude of the echo signals is 20-400 Hz, which allows using higher-frequency harmonic components of echo signals to determine and classify the object at depth up to 100 m.

Echolocation device for geophysical exploration is intended for detection and primary classification of objects by their acoustic rigidity and can be used for geophysical exploration at shallow depths (up to 100.0 m).

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References


Danko, D. A. (2016). Comparison of deterministic acoustic inversion methods for prediction of the prospective acoustically contrast objects from seismic data. The Russian Geophysics Journal, 1, 2–11.

Belousov, A. V., Kostitsyn, V. I. (2015). Itogi mezhdunarodnoi nauchno-prakticheskoi konferentsii "Teoriia i praktika razvedochnoi i promyslovoi geofiziki". Geofizicheskii vestnik, 6, 9–12.

Karapetov, G. A. (2013). Spectro-holographic method of velocity analysis. The Russian Geophysics Journal, 5, 68–74.

Davydov, A. B., Skovorodnikov, I. G., Davydov, V. A. (1995). Sposob gamma-oprobovaniia gornyh porod i rud na soderzhanie radioaktivnyh elementov. Informatsionno-tematicheskii sbornik RF. Ekaterinburg: IG RIA, 18–29.

Davydov, V. А. (2010). Use of shallow seismic investigation for studying of undermined areas. News of the Higher Institutions. Mining Journal, 4, 111–116.

Park, C. B., Miller, R. D., Xia, J., Ivanov, J. (2007). Multichannel analysis of surface waves (MASW) – active and passive methods. The Leading Edge, 26 (1), 60–64. doi: 10.1190/1.2431832

Pirttijärvi, M. T., Lerssi, J. (2006). Laterally Constrained 1D Inversion of Airborne Electromagnetic Data. Near Surface 2006 – 12th EAGE European Meeting of Environmental and Engineering Geophysics. doi: 10.3997/2214-4609.201402626

Thitimakorn, T., Anderson, N. L., Stephenson, R., Liu, W. (2005). 2-D Shear-Wave Velocity Profile Along Test Segment of Interstate I-70, St. Louis, Missouri. Site Characterization and Modeling. doi: 10.1061/40785(164)14

Garcia, X., Jones, A. G. (2002). Atmospheric sources for audio-magnetotelluric (AMT) sounding. GEOPHYSICS, 67 (2), 448–458. doi: 10.1190/1.1468604

Hayashi, K., Suzuki, H. (2004). CMP cross-correlation analysis of multi-channel surface-wave data. Exploration Geophysics, 35 (1), 7. doi: 10.1071/eg04007




DOI: http://dx.doi.org/10.21303/2461-4262.2017.00307

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Copyright (c) 2017 Obbozzhon Kuldashev, Ibrohimzhon Tojiboev

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ISSN 2461-4262 (Online), ISSN 2461-4254 (Print)