Surface waves as a cost-effective tool for enhancing the interpretation of shallow refraction seismic data
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F23%3A00576196" target="_blank" >RIV/67985891:_____/23:00576196 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11310/23:10472378
Výsledek na webu
<a href="https://doi.org/10.13168/AGG.2023.0012" target="_blank" >https://doi.org/10.13168/AGG.2023.0012</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/AGG.2023.0012" target="_blank" >10.13168/AGG.2023.0012</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Surface waves as a cost-effective tool for enhancing the interpretation of shallow refraction seismic data
Popis výsledku v původním jazyce
Surface waves typically constitute the dominant component of the seismic record, thus yielding the highest signal-to-noise ratio. Their propagation velocities are closely linked to the shear-wave velocity of the medium. In this study, we provide a review of the basics of surface wave analysis, focusing on Multichannel Analysis of Surface Waves (MASW). We illustrate this approach through four case studies representing common geophysical tasks. By incorporating basic surface wave dispersion analysis into standard refraction surveys, we aim to reduce solution ambiguity and enhance knowledge without incurring additional costs. In Case Study 1, we address the topic of vertical geophone natural frequencies and compare data acquired simultaneously, concluding that even with 10 Hz geophones, surface wave dispersion analysis can yield satisfactory results. Case Study 2 demonstrates that MASW analysis can successfully supplement the standard travel-time tomography and help define geological interfaces. In Case Study 3, we demonstrate that obtaining P-wave and S-wave velocities from a single acquisition setup can aid in determining groundwater level. Case Study 4 showcases an example of joint passive and active MASW analysis, resulting in an extended shear wave velocity model. As our four case studies illustrate, when used appropriately and with an understanding of its limitations, MASW can serve as a powerful tool for subsurface investigation across various geological and geotechnical settings, significantly augmenting the knowledge derived from refraction data.
Název v anglickém jazyce
Surface waves as a cost-effective tool for enhancing the interpretation of shallow refraction seismic data
Popis výsledku anglicky
Surface waves typically constitute the dominant component of the seismic record, thus yielding the highest signal-to-noise ratio. Their propagation velocities are closely linked to the shear-wave velocity of the medium. In this study, we provide a review of the basics of surface wave analysis, focusing on Multichannel Analysis of Surface Waves (MASW). We illustrate this approach through four case studies representing common geophysical tasks. By incorporating basic surface wave dispersion analysis into standard refraction surveys, we aim to reduce solution ambiguity and enhance knowledge without incurring additional costs. In Case Study 1, we address the topic of vertical geophone natural frequencies and compare data acquired simultaneously, concluding that even with 10 Hz geophones, surface wave dispersion analysis can yield satisfactory results. Case Study 2 demonstrates that MASW analysis can successfully supplement the standard travel-time tomography and help define geological interfaces. In Case Study 3, we demonstrate that obtaining P-wave and S-wave velocities from a single acquisition setup can aid in determining groundwater level. Case Study 4 showcases an example of joint passive and active MASW analysis, resulting in an extended shear wave velocity model. As our four case studies illustrate, when used appropriately and with an understanding of its limitations, MASW can serve as a powerful tool for subsurface investigation across various geological and geotechnical settings, significantly augmenting the knowledge derived from refraction data.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
<a href="/cs/project/TK03010160" target="_blank" >TK03010160: Interaktivní mapa seismického ohrožení České republiky</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Acta geodynamica et geomaterialia
ISSN
1214-9705
e-ISSN
2336-4351
Svazek periodika
20
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
18
Strana od-do
121-138
Kód UT WoS článku
001082123500005
EID výsledku v databázi Scopus
2-s2.0-85174036636