- Tytuł:
- Impact of voids and backfill on seismic wave velocity-preliminary results
- Autorzy:
-
Mukhamedyarova, Zarina
Suorineni, Fidelis
Aldubay, Temirlan
Sapinov, Gylym - Powiązania:
- https://bibliotekanauki.pl/articles/2201421.pdf
- Data publikacji:
- 2022
- Wydawca:
- Główny Instytut Górnictwa
- Tematy:
-
seismic event source location accuracy
constantly changing mine conditions
real-time seismic wave velocity
void and cemented sand backfill effect with time
dokładność lokalizacji źródła zdarzeń sejsmicznych
stale zmieniające się warunki kopalniane
prędkość fali sejsmicznej w czasie rzeczywistym - Opis:
- In this study, laboratory experiments were conducted on discrete physical models that mimic mining effects to better understand the impact of continuous changes in mining environments on seismic wave velocities. The discrete physical models are represented by concrete and granite cubic samples of different sizes with holes of different diameters filled and unfilled with cemented sand backfill of different cement-sand content ratios. The hole diameters range from 0 to 150 mm in block sizes ranging from 150 mm to 450 mm in increments of 75 mm. The increasing hole size mimics increasing extraction in the mine with time. Cemented sand fills at cement contents ranging from 0 to 20% are used to fill the voids after testing them empty and retesting the same at different backfill cured ages. The SAEU3H AE eight-channel system is used in the study. Preliminarily results show that the impact of continuous changes in mining environments significantly affects the seismic wave velocities. The impact of voids and their contents on the seismic wave velocity depends on the sensor location relative to source and void, and it backfills cement content with time.
- Źródło:
-
Journal of Sustainable Mining; 2022, 21, 4; 319--333
2300-1364
2300-3960 - Pojawia się w:
- Journal of Sustainable Mining
- Dostawca treści:
- Biblioteka Nauki
Artykuł