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Document ID (ISN)103480
CIS number 04-454
ISBN(s) 2-551-22610-4
Year 2004
Convention or series no. Etudes et recherches R-389
Author(s) Hassani F.P., Momayez M.
Title Design of a new auscultation device for layers of shotcrete on the walls of underground mines
Original title Conception d'un nouvel appareil d'auscultation des couches de béton projeté sur les parois des galeries de mines souterraines [in French]
Bibliographic information 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.
Internet access http://www.irsst.qc.ca/files/documents/PubIRSST/R-389.pdf [in French]
Abstract 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.
Descriptors (primary) underground mining; non-destructive testing; shotcreting
Descriptors (secondary) literature survey; description of technique; ultrasonic testing; report
Document type E - Books, reports, proceedings
Country / State or ProvinceCanada
Subject(s) Mines and quarries
Broad subject area(s) Mechanical hazards, transport
Browse category(ies) Surface treatment