Detection of underground instabilities in an old limestone quarry through acoustic monitoring - Ineris - Institut national de l'environnement industriel et des risques Access content directly
Conference Papers Year : 2014

Detection of underground instabilities in an old limestone quarry through acoustic monitoring

Abstract

The presence of abandoned and unstable underground cavities can give rise to a potential risk of surface collapse, particularly alarming when the presence of buildings is attested on the surface. The INERIS (Institut National de l’Environnement Industriel et des Risques, France) has 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 collapse of blocks from the roof and the walls of the cavity. A series of tests were carried out to determine the propagation characteristics. Preliminary data processing concerned the event classification and the analysis of the signal-to-noise ratio (SNR). In the present paper, after the description of the case study, the preliminary results and the description of the upcoming works and expectation will be outlined.

Domains

Earth Sciences
Not file

Dates and versions

ineris-01855519 , version 1 (08-08-2018)

Identifiers

  • HAL Id : ineris-01855519 , version 1

Cite

Cristina Occhiena, Marina Pirulli, Claudio Scavia, A. Astolfi, G.E. Puglisi, et al.. Detection of underground instabilities in an old limestone quarry through acoustic monitoring. ISRM European Rock Mechanics Symposium (EUROCK 2014) "Rock Engineering and Rock Mechanics : Structures in and on Rock Masses", May 2014, Vigo, Spain. pp.609-612. ⟨ineris-01855519⟩

Collections

INERIS
13 View
0 Download

Share

Gmail Facebook Twitter LinkedIn More