Specialists from the Trofimuk Institute of Petroleum Geology and Geophysics SB RAS are developing geophysical tools and their underlying algorithms for applied research using the method of multichannel analysis of surface seismic waves.
This discussion at the geophysical seminar followed the presentation by Alexander Serdyukov, PhD (phys.-math.) senior research scientist at the Laboratory of Dynamic Analysis in Seismology of IPGG SB RAS.
The multichannel analysis of surface waves (MASW) is a seismic exploration technique which is used for solving applied problems in engineering seismology, as well as for assessment of near-surface structural and geotechnical parameters to depths of up to 50 meters.
Because MASW addresses the specific challenges associated with the complex and heterogeneous subsurface conditions, it is actively used in geotechnical investigations related to construction engineering by providing essential data to ensure the safety and efficiency of construction practices, and to underpin improvements of operational safety of structures. In regulatory documents, the method is recommended for subsurface investigations for seismic microzonation purposes. A number of algorithms developed at IPGG SB RAS have improved the quality of data obtained using MASW.
“We are currently testing this approach for solving several applied problems, such as monitoring rock-mass condition, and mine shaft and tunnel lining integrity, as well as assessing road surface condition and identifying areas prone to frost heaving,” noted A.S. Serdyukov.
Previously, the probation of the method was performed in abandoned tunnel, Kemerovo region.
To conduct fieldworks, a working prototype of new autonomous multichannel data acquisition system was designed and developed at IPGG SB RAS to ensure high-quality seismograms. Also, the experiments were conducted to test the equipment.
Published by IPGG Press Service
Photo from the presentation by A.S. Serdyukov
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