|Document ID (ISN)||103480|
|Convention or series no.
||Etudes et recherches R-389
||Hassani F.P., Momayez M.
||Design of a new auscultation device for layers of shotcrete on the walls of underground mines
||Conception d'un nouvel appareil d'auscultation des couches de béton projeté sur les parois des galeries de mines souterraines [in French]|
||Institut de recherche en santé et en sécurité du travail du Québec (IRSST), 505 boul. de Maisonneuve Ouest, Montreal (Quebec) H3A 3C2, Canada, 2004. ix, 72p. Illus. 51 ref. Price: CAD 7.49. Downloadable version (PDF format) free of charge.
||http://www.irsst.qc.ca/files/documents/PubIRSST/R-389.pdf [in French]
||Rock falls cause many accidents in underground mines. Sprayed concrete is commonly used to shore up gallery walls, but its application is often uncontrolled and its properties difficult to evaluate. MSR Impact-echo seismic wave analysis technology is capable of non-destructively measuring the thickness, dynamic properties and failures of concrete layers more than 300mm thick. The goal of this project was to adapt this sprayed-concrete testing technique for use with concrete layers of thickness ranging between 25 and 300mm, and to develop a, portable, commercial instrument for the mining sector requiring minimum intervention from users. This fast, accurate and practical method has helped improve mine safety. Applications in the construction sector are being considered.
||underground mining; non-destructive testing; shotcreting
||literature survey; description of technique; ultrasonic testing; report
||E - Books, reports, proceedings
|Country / State or Province||Canada|
||Mines and quarries
|Broad subject area(s)
||Mechanical hazards, transport