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Keywords: underground research laboratory
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Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0543
... Underground Research Laboratory (URL) in Southern Switzerland in the old Bedretto Gallery is under construction for the purpose of studying the evolution of the Excavation Damage Zone (EDZ) in crystalline rocks. The new experimental tunnel will form a new branch from the existing Bedretto tunnel which...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-629
... Abstract Since the formation of the International Society for Rock Mechanics (ISRM) Commission on Underground Research Laboratory (URL) Networking in 2011, we have attended and organized URL-related meetings. During 2013 -2014, the gatherings of Commissioners include the 3 rd SINOROCK, 47 th...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-480
... Abstract Since a decade, observations and experiments conducted in underground environments worldwide (mines, underground research laboratories - URL) allowed to bridge the scale gap between laboratory scale and large scale faults. This is particularly important in the study of faults...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-152
... using site-specific geometry, the Brazilian tensile strength, and the AMTS. The approach was applied to AECL’s Underground Research Laboratory and found to be in agreement with field observations. It is also found that a large diameter hole with a rounded shape bit can significantly reduce the potential...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-718
... Abstract: An ISRM Commission on Underground Research Laboratory (URL) Networking was formed in 2011 for better exchanges of information among different societies, academia, laboratories, and industry on underground studies. The Commissioners have interests in radioactive waste assessments...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-181
... ABSTRACT This paper provides an overview of the status of the design and construction planning for a new generation of deep Underground Research Laboratories (URL’s). These facilities are under preliminary design for candidate sites in Asia, Europe and North America. As currently scoped, all...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-276
... ABSTRACT: Concepts for developing existing mine levels to support underground research laboratory facilities are described. Multiple levels are being considered for an integrated suite of experiments at the Deep Underground Science and Engineering Laboratory to be built within the footprint...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-1389
... was applied to two- and three-dimensional non-linear models of the Underground Research Laboratory (URL) of the Atomic Energy of Canada Limited (AECL), Canada. The 3-D model was able to completely reproduce the complex stress pattern measured in situ , and the 90 ° rotation of the principal in situ...
Proceedings Papers

Paper presented at the Vail Rocks 1999, The 37th U.S. Symposium on Rock Mechanics (USRMS), June 7–9, 1999
Paper Number: ARMA-99-0885
... Reservoir Characterization Rock mechanics experiment Upstream Oil & Gas hydraulic conductivity waste management concrete bulkhead borehole reservoir geomechanics bulkhead MPa repository EDZ conductivity lhhpc placement underground research laboratory clay bulkhead tunnel...
Proceedings Papers

Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0613
... ABSTRACT INTRODUCTION The examination of the effect of scale on measured in situ stress data has been one focus of an experimental program conducted by AECL Research at the Underground Research Laboratory (URL) [ 1]. The stress determination methods used in the program include conventional...
Proceedings Papers

Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0617
... in the interpretation of stress measurements is the paucity of measurements at any one site. An exception is the Underground Research Laboratory (URL), where about 350 triaxial stress measurements have been made in a volume of rock about 100 m x 100 m x 500 m deep. This is more than twice the number of triaxial stress...
Proceedings Papers

Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0757
... by AECL and Ontario Hydro under the auspices of the CANDU Owners Group. THE MINE.BY EXPERIMENT The Mine-by E/tperiment [2] is one of the operating phasexperiments being conducted at the Underground Research Laboratory (URL) [3], a multidisciplinary engineering research and development facility...
Proceedings Papers

Paper presented at the The 33rd U.S. Symposium on Rock Mechanics (USRMS), June 3–5, 1992
Paper Number: ARMA-92-0201
... ABSTRACT: AECL Research is conducting investigations at its Underground Research Laboratory (URL) in the Lac du Bonnet granite batholith to assess components of the Canadian concept for nuclear fuel waste disposal deep in the plutonic rock of the Canadian Shield. The Mine-by Experiment, one...
Proceedings Papers

Paper presented at the The 32nd U.S. Symposium on Rock Mechanics (USRMS), July 10–12, 1991
Paper Number: ARMA-91-771
... extreme, a very highly structured, relatively weak rock mass (Hemlo). The case studies are discussed below. 3.1 Atomic Energy of Canada Limited's Underground Research Laboratory The Atomic Energy of Canada Limited (AECL) is conducting research at their Underground Research Laboratory (URL) located near...
Proceedings Papers

Paper presented at the The 32nd U.S. Symposium on Rock Mechanics (USRMS), July 10–12, 1991
Paper Number: ARMA-91-313
... Program is assessing the feasibility and safety of disposal of high-level nuclear wastes in a vault excavated at a depth of 500 to 1000 m in the plutonic rock of the Canadian Shield. As part of the program, AECL Research has constructed the Underground Research Laboratory (URL) in the Lac du Bonnet...
Proceedings Papers

Paper presented at the The 32nd U.S. Symposium on Rock Mechanics (USRMS), July 10–12, 1991
Paper Number: ARMA-91-251
... Branch, Pinawa, Man., Canada ABSTRACT: AECL Research carded out the first hydraulic fracturing stress measurement tests at the proposed site of the Underground Research Laboratory (URL) in 1982. Since then, both hydraulic fracturing stress measurements and overcoring stress measurements have been...
Proceedings Papers

Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0015
... ABSTRACT: In 1982, Atomic Energy of Canada Limited (AECL) carried out the first in situ stress measurements at the proposed site for the Underground Research Laboratory (URL). These hydraulic fracturing measurements were taken between the 12and 540-m depth in the general area of the proposed...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0509
... rock formations of the Canadian Shield. As part of this research program, AECL is constructing an Underground Research Laboratory (URL) near Lac du Bonnet, Manitoba. The URL provides researchers with access to a previously undisturbed granitic rock mass to conduct a wide variety of in situ geotechnical...

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