La surveillance microsismique de l'exploitation souterraine du charbon aux Houillières de Provence : contribution à la détection des risques de coups de terrains par écoute microsismique

Abstract : At the Provence Colliery, the remote microseismic monitoring used for the prevention of dynamic phenomena is an integral part of strategy for exploring zones. This study consists in characterization and understanding of seismic events induced by mining works in order to obtain microseismic criterion of zones where there are risks of violent instability. This report is divided in two maining parts : the research of optimal methods for calculation of the precise location, the energy release and magnitude of microseismic events ; the characterization of microseismic activity as the function of environment and the research of microseismic risk criterion. This study led to the following results : the hypocentre location showed coherent correlations with change in stress state of the mining exploitation environment, the microseismic activity is greatly correlated with the geometry of the exploitation, the application of some prediction statistical technics allowed to identify dangerous periods. This study permited us to understand the behaviour of microseismic activity and to open new perpectives in the research of risk microseismic criterion.
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Theses
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http://docnum.univ-lorraine.fr/prive/INPL_T_1995_CONTRERAS_SENFAUTE_G.pdf
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https://hal.univ-lorraine.fr/tel-01751579
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Submitted on : Thursday, March 29, 2018 - 1:22:03 PM
Last modification on : Monday, April 16, 2018 - 10:41:11 AM

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Gloria Contreras-Senfaute. La surveillance microsismique de l'exploitation souterraine du charbon aux Houillières de Provence : contribution à la détection des risques de coups de terrains par écoute microsismique. Autre. Institut National Polytechnique de Lorraine, 1995. Français. ⟨NNT : 1995INPL099N⟩. ⟨tel-01751579⟩

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