Large-scale field experiment to calibrate microseismic source parameters applied to real-time monitoring of post-mining instabilities

Abstract : The CAMI-AFT experiment was carried out with a view to calibrating real-time microseismic Systems installed on sites prone to post-mining collapse, in thé Lorraine Iron Basin (France) by improving automatic routines applied to microseismic waveform processing and reliable source parameter estimâtes. To this intent, mine blasts, with well-known location and energy source, were carried out on a few monitored sites still accessible underground. In-depth analysis of ail recorded seismograms first allowed us to define a relationship for accurate source energy calculation derived from recorded seismograms. Data were used to test and calibrate waveform polarization routines as well as numerical multilayered velocity models. Finally, automatic 3D localization of low-magnitude microseismic events (M < 0) based on a small number of stations was thus improved.
Document type :
Conference papers
Complete list of metadatas

https://hal-ineris.archives-ouvertes.fr/ineris-00970277
Contributor : Gestionnaire Civs <>
Submitted on : Wednesday, April 2, 2014 - 3:46:41 PM
Last modification on : Wednesday, April 2, 2014 - 3:46:41 PM

Identifiers

  • HAL Id : ineris-00970277, version 1
  • INERIS : EN-2007-222

Collections

Citation

Jessica Tastet, Isabelle Contrucci, Emmanuelle Klein, Pascal Bigarre, Lynda Driad-Lebeau. Large-scale field experiment to calibrate microseismic source parameters applied to real-time monitoring of post-mining instabilities. 11. Congress of the International Society for Rock Mechanics (ISRM 2007), Jul 2007, Lisbonne, Portugal. pp.1147-1150. ⟨ineris-00970277⟩

Share

Metrics

Record views

277