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Keywords: detection
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-089
... improved to record signals with 1 MHz sampling rate, to detect signals produced by weaker sources and enhance the microseismic catalogue. The acquisition system was capable to operate in trigger and continuous mode. The basic idea of the experiment was to compare hydraulic fracturing growth and induced...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-096
... Abstract Faults and hidden granites provide extreme challenges for mining and construction in metallic mine. Ground penetrating radar (GPR) technology, mainly used in detection of layers of medium, is restricted in exploration of metallic mine with complex geology structure using reflected...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-098
... carried out many studies, in recent years, investigating the effectiveness of several methodologies to monitor the evolution of the damaging mechanisms. During 2012 the Brasserie quarry, an old limestone mine (Paris, France) was instrumented with microphones to detect the acoustic waves generated by the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-070
... both the social and economical aspects, in agreement with the Park authorities it was established to run an adequate environmental monitoring. Reservoir Characterization seismo-acoustic array amplitude metals & mining detection propagation back-azimuth real time system quarry...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-064
... ABSTRACT: Surface seismic surveying methods are recommended during the early phase of a geotechnical site characterization programme, preferably prior to drilling and excavation activities, with the objective of detecting critical zones for more detailed invasive follow-up investigations, such...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-069
... ABSTRACT The paper is concerned with the development and application of an automatic algorithm of image analysis for detection of intercrystalline microcracks in dolomite structures in the laboratory conditions. In sections of dolomite rock samples were duly prepared. For each measurement...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-038
.... discontinuity trace map discontinuity procedure pixel rock face application rock mass grey level characterisation lineament fragment Artificial Intelligence detection digital image photoanalysis algorithm knowledge base photograph Discontinuity Measurement image processing Eurock '96...

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