Local amplification of deep mining induced vibrations Part 1: Experimental evidence for site effects in a coal basin

Abstract : The work presented in this paper lies under the scope of a research program aiming to assess the impact of deep coal mining induced vibrations on the surface constructions. The concerned section of the program is dedicated to the study of geological site effects and their influence on the mining induced vibrations for which the experimental investigations have been carried out and developed in this paper (Part 1). The empirical methods based on HIV spectral ratios have been applied on data sets provided from mining induced vibrations recorded within private residences above the deep coalmine as well as complementary measurements of ambient noise. The results evidence an amplified zone in the southern part of the Gardanne basin where drilling data confirmed the presence of particularly fractured and soft stratigraphic units. This joint analysis of induced seismicity and ambient noise enabled to validate the method based on HIV ratios applied to the mining context.
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Lynda Driad-Lebeau, Nabila Lokmane, Jean-François Semblat, Guy Bonnet. Local amplification of deep mining induced vibrations Part 1: Experimental evidence for site effects in a coal basin. Soil Dynamics and Earthquake Engineering, Elsevier, 2009, 29 (1), pp.39-50. ⟨10.1016/j.soildyn.2008.01.014⟩. ⟨hal-00691106⟩

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