Ensuring safe operation and assessing the condition underground structures by the method of acoustic resonance flaw detection

Energy Management of Municipal Transportation Facilities and Transport - EMMFT 2017

Meskhi, Besarion^1 ; Pleshko, Mikhail^1,2 ; Buligin, Yuriy^2 ; Alexeenko, Lyudmila^2 ; Molev, Mikhail^2

Don State Technical University, pl. Gagarina, 1, Rostov-on-Don

344022, Russia^1

Rostov State Transport University, Rostovskogo Strelkovogo polka sq., 2, Rostov-on-Don

344038, Russia^2

关键词: Acoustic assessment;    Acoustic resonance;    Acoustic standing wave;    Experimental research;    Forced oscillations;    Safe operation;    Shock initiation;    Transport tunnels;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/90/1/012217/pdf
DOI  :  10.1088/1755-1315/90/1/012217

来源: IOP

【 摘 要 】

In the article the main results of theoretical and experimental research in the field of nondestructive testing and forecasting of the geomechanical state of the dome part of transport tunnels. It is shown that for this purpose it is possible to apply the acoustic resonance defectoscopy method. The method of mine measurements consisted in fixing the forced oscillations of a multilayer carbon-rock massif with the shock initiation of a seismoacoustic signal. The excitation and reception of acoustic standing waves were carried out in the lower rock layer. The actual characteristics of the efficiency of the acoustic assessment of the state of the geoenvironment provide the authors the opportunity to recommend the described methodology for mass practical application in the transport tunnels.