@article{PAR00003005, title = {{A}mbient noise energy bursts observation and modelling: {T}rapping of harmonic structure-soil induced-waves in a topmost sedimentary layer}, author = {{C}ornou, {C}{\'e}cile and {G}ueguen, {P}. and {B}ard, {P}.{Y}. and {H}aghshenas, {E}.}, editor = {}, language = {{ENG}}, abstract = {{W}e study the nature of energy bursts that appeared in the frequency range 3-5 {H}z in ambient seismic noise recorded in the {G}renoble basin ({F}rench {A}lps) during a seismological array experiment. {A} close agreement is found between the identified azimuths of such noise bursts with the location of an industrial chimney. {I}n-situ measurements of the chimney dynamic characteristics show a coincidence between the frequency of the first harmonic mode of the chimney and the fundamental frequency of a thin surficial layer that overlay the deep sediment fill. {T}he interaction between the chimney and the surfical layer is then numerically simulated using simple impedance models, and two geotechnical profiles. {S}imulations exhibit a satisfactory agreement with observations and suggest that energy bursts result of inertial structure-soil interaction favored by resonance effects between the first harmonic mode of the structure and the fundamental frequency of the topmost layer.}, keywords = {microtremors ; site effects ; structure-soil interaction ; {H}over {V} spectral ratio ; urban ground motion}, booktitle = {}, journal = {{J}ournal of {S}eismology}, volume = {8}, numero = {4}, pages = {507--524}, year = {2004}, DOI = {10.1007/s10950-004-1980-7}, URL = {https://www.documentation.ird.fr/hor/{PAR}00003005}, }