Time-lapse monitoring of hard-rocks properties in the vicinity of underground excavation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F17%3A00008822" target="_blank" >RIV/46747885:24220/17:00008822 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10369782

Výsledek na webu

<a href="https://www.researchgate.net/publication/323245938_Time-lapse_monitoring_of_hard-rocks_properties_in_the_vicinity_of_underground_excavation" target="_blank" >https://www.researchgate.net/publication/323245938_Time-lapse_monitoring_of_hard-rocks_properties_in_the_vicinity_of_underground_excavation</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Time-lapse monitoring of hard-rocks properties in the vicinity of underground excavation

Popis výsledku v původním jazyce

Studying the behavior of the rock mass is essential for developing a geophysical monitoring system, which allows continuous time-lapse monitoring of the state of the rocks environment. For example, rock mass monitoring might be a crucial part of a system for storing dangerous, especially nuclear waste in a geological environment. The goal of this project is developing a working system for long-term time-lapse monitoring of a geological environment using non-destructive geophysical techniques. The monitoring system works with geoelectrical and seismic properties of the hard-rocks environment. The system carries out 4D monitoring of the rock properties behavior in the close vicinity of an underground excavation. For the initial experimental measurements, two geophysical methods were chosen - electrical resistive tomography (ERT) and ultrasonic microseismic. The ERT method uses a set of 48 stainless electrodes 20 cm apart (9.4 m length of the profile in total) and the frequency of the measurements is six hours (i.e., four measurements per day). Currently the seismic uses frequency of five minutes between gathering one seismic record. Attention is paid to the behavior of a significant fracture located in the middle of the measuring system. The monitoring device collects data that are being sent via the LAN connection to the project members' computers.

Název v anglickém jazyce

Time-lapse monitoring of hard-rocks properties in the vicinity of underground excavation

Popis výsledku anglicky

Studying the behavior of the rock mass is essential for developing a geophysical monitoring system, which allows continuous time-lapse monitoring of the state of the rocks environment. For example, rock mass monitoring might be a crucial part of a system for storing dangerous, especially nuclear waste in a geological environment. The goal of this project is developing a working system for long-term time-lapse monitoring of a geological environment using non-destructive geophysical techniques. The monitoring system works with geoelectrical and seismic properties of the hard-rocks environment. The system carries out 4D monitoring of the rock properties behavior in the close vicinity of an underground excavation. For the initial experimental measurements, two geophysical methods were chosen - electrical resistive tomography (ERT) and ultrasonic microseismic. The ERT method uses a set of 48 stainless electrodes 20 cm apart (9.4 m length of the profile in total) and the frequency of the measurements is six hours (i.e., four measurements per day). Currently the seismic uses frequency of five minutes between gathering one seismic record. Attention is paid to the behavior of a significant fracture located in the middle of the measuring system. The monitoring device collects data that are being sent via the LAN connection to the project members' computers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20703 - Mining and mineral processing

Projekt

<a href="/cs/project/TA03020408" target="_blank" >TA03020408: Monitoring chování puklinových systémů horninového masivu geofyzikálními metodami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACTA MONTANISTICA SLOVACA

ISSN

1335-1788

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

8

Strana od-do

396-403

Kód UT WoS článku

000439005200007

EID výsledku v databázi Scopus

2-s2.0-85041601144